Aostirmotor

Aostirmotor A20 36V/13Ah 500W Fat Tire Folding Electric Bike

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Description
FAQs
Warranty
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Returns

Conquer Any Terrain, Fold It Away Anywhere

The AOSTIRMOTOR A20 combines the versatility of a folding frame with the unstoppable traction of fat tires, creating the ultimate electric bike for adventurers who refuse to compromise. Whether you're navigating snowy trails, sandy beaches, or city streets, this 500W powerhouse delivers reliable performance while folding down small enough to fit in your trunk, RV, or apartment.

Perfect for: Urban commuters with limited storage, weekend adventurers, RV travelers, and anyone who wants an electric bike that goes anywhere and stores everywhere.

Key Features & Benefits

🚴 Powerful 500W Motor

  • Tackle steep hills up to 25° with ease
  • Reach speeds up to 20 mph (pedal assist) or 15 mph (throttle only)
  • Smooth, responsive acceleration for confident riding
  • Quiet brushless motor for peaceful rides

🔋 Long-Lasting 36V/13Ah Battery

  • Range: 25-40 miles per charge (depending on terrain, rider weight, and assist level)
  • Charge Time: 4-6 hours with included smart charger
  • Removable battery for convenient charging at home or office
  • Built-in battery management system protects against overcharge and extends lifespan

🛞 20" x 4.0" Fat Tires

  • Superior traction on sand, snow, mud, gravel, and pavement
  • Enhanced stability and shock absorption for comfortable rides
  • Puncture-resistant design reduces maintenance
  • Perfect for all-season, all-terrain riding

📦 Space-Saving Folding Design

  • Folds in seconds without tools
  • Folded Dimensions: Compact enough for car trunks, closets, and under desks
  • Weight: Approximately 68 lbs (manageable for most adults)
  • Ideal for multi-modal commuting and limited storage spaces

Ride Modes: Choose Your Adventure

The A20 offers three distinct riding modes to match your needs:

🔌 Pure Electric Mode (Throttle Only)

Twist the throttle and cruise up to 15 mph without pedaling. Perfect for when you need a break or want effortless transportation.

🚴 Pedal Assist Mode (PAS)

Choose from 5 levels of electric assistance that amplify your pedaling power. Great for exercise, extending range, and conquering hills.

💪 Manual Mode

Turn off the motor and ride it like a traditional bike. The 7-speed Shimano gears give you plenty of options for any terrain.

Safety & Control Features

✅ Dual Mechanical Disc Brakes - Reliable stopping power in all weather conditions
✅ Bright LED Headlight - Integrated front light for visibility and safety
✅ LCD Smart Display - Monitor speed, battery level, distance, and assist mode at a glance
✅ Reflective Elements - Enhanced visibility for night riding
✅ Sturdy Kickstand - Stable parking on any surface
✅ Bell Included - Alert pedestrians and other riders safely

What's Included

When your AOSTIRMOTOR A20 arrives, you'll receive everything you need to start riding:

  • ✓ AOSTIRMOTOR A20 Electric Bike (85% pre-assembled)
  • ✓ 36V/13Ah Removable Lithium Battery
  • ✓ Smart Battery Charger
  • ✓ Pedals
  • ✓ User Manual & Assembly Tools
  • ✓ Front and Rear Fenders (installed)
  • ✓ LED Headlight (installed)

Assembly Required: Minimal assembly needed - attach handlebars, pedals, and front wheel (approximately 20-30 minutes).

Why Choose the AOSTIRMOTOR A20?

✨ Versatility Meets Convenience

This isn't just another electric bike - it's a complete transportation solution. The folding frame means you can take it anywhere: store it in your apartment, bring it on your boat, pack it in your RV, or toss it in your trunk for weekend adventures.

🌍 All-Terrain Capability

Those 4-inch fat tires aren't just for show. They provide genuine all-terrain capability that standard e-bikes can't match. Ride confidently through:

  • Beach sand and boardwalks
  • Snow and ice
  • Gravel paths and dirt trails
  • Wet pavement and puddles
  • Rocky terrain

💰 Exceptional Value

Get premium features like a 500W motor, removable battery, fat tires, and folding frame at a price point that won't break the bank. This is serious performance without the luxury price tag.

🔧 Low Maintenance

The A20 is built with quality components that require minimal upkeep. Mechanical disc brakes are easy to service, the Shimano drivetrain is proven reliable, and the brushless motor is virtually maintenance-free.

Real-World Performance

Estimated Range by Riding Conditions:

Riding Condition Estimated Range
Flat terrain, PAS Level 1-2, 150 lb rider 35-40 miles
Mixed terrain, PAS Level 3, 180 lb rider 28-32 miles
Hilly terrain, PAS Level 4-5, 200 lb rider 25-28 miles
Throttle only, mixed terrain 20-25 miles

Note: Actual range varies based on rider weight, terrain, wind, temperature, tire pressure, and riding style.

Who Is This Bike For?

✅ Perfect For:

  • Commuters with limited storage space
  • RV and boat owners
  • Beach and trail enthusiasts
  • Riders who want all-terrain capability
  • Anyone needing a portable electric bike
  • Multi-modal commuters (bike + car/train/bus)
  • Apartment dwellers

⚠️ Consider Alternatives If:

  • You need maximum range (40+ miles)
  • You prefer a full-size, non-folding frame
  • You're looking for a lightweight bike (under 50 lbs)
  • You need a bike for riders under 5'3" or over 6'3"

Eco Bikes USA Advantage

When you buy from Eco Bikes USA, you get more than just a great bike:

✓ Free Delivery - We ship to your door at no extra cost
✓ Price Match Guarantee - Find it cheaper? We'll match it
✓ Same Day Processing - Order today, processed today (ships in 1-2 day)
✓ Excellent Customer Support - Real people ready to help
✓ 1-Year Warranty - Ride with confidence

Ready to Ride?

The AOSTIRMOTOR A20 delivers unbeatable versatility at an incredible value. Whether you're commuting to work, exploring trails, or just enjoying the freedom of electric riding, this fat tire folding e-bike is ready for anything.

Order today and experience the perfect blend of power, portability, and all-terrain capability.

All specifications are subject to manufacturer updates. Eco Bikes USA is not the manufacturer but an authorized retailer. Warranty service is provided through the manufacturer.

Frequently Asked Questions

How long does the battery last?

The 36V/13Ah battery provides 25-40 miles per charge, depending on conditions. Battery lifespan is typically 800-1000 charge cycles (3-5 years of regular use).

Can I ride it in the rain?

Yes, the A20 is water-resistant (not waterproof). Avoid deep puddles and submersion, but light rain is fine.

How fast can it go?

Up to 20 mph with pedal assist, 15 mph on throttle only.

Is it street legal?

Yes, in most states. The A20 meets Class 2 e-bike specifications (throttle + pedal assist, max 20 mph). Check your local regulations.

How much assembly is required?

Minimal - attach handlebars, front wheel, and pedals. Takes about 20-30 minutes with the included tools.

What's the weight limit?

Maximum load capacity is 330 lbs.

AOSTIRMOTOR Electric Bike Manufacturer's Warranty Policy

Warranty Coverage

All AOSTIRMOTOR electric bikes sold by Eco Bike USA are covered under a 1-year all-inclusive manufacturer's warranty for the original owner against manufacturing defects. This warranty is registered automatically when you receive your product and applies to the original purchaser only.

Note: Free accessories included with your purchase are not covered by warranty service.

Warranty Transfer

The warranty may be transferred to a new owner only if both conditions are met:

  • The 1-year warranty period has not expired since the original owner received the bike
  • The new owner has the original purchaser's name and order number

Comprehensive Coverage

Power System (12-18 months)

  • Battery: 18 months
  • Motor: 12 months
  • Controller: 12 months
  • Charger: 12 months
  • Display: 12 months
  • Throttle/Turn-Handle: 12 months
  • Power Sensor: 12 months

Free replacement parts and free shipping within warranty period

Structural System

  • Frame: 36 months
  • Fork: 12 months
  • Handlebar: 12 months
  • Middle Axle: 12 months
  • Chainring + Crank: 12 months
  • Rear Rack: 12 months

Guaranteed against factory workmanship and material defects

Brake System (12 months)

  • Brake lever
  • Disc brakes
  • Brake components

Free replacement parts and free shipping within warranty period

Wheel System

  • Rims: 12 months
  • Fenders: 6 months
  • Tires: 6 months

Speed System (12 months)

  • Derailleur
  • Gear shift lever
  • Chain
  • Turn-handle

Free replacement parts and free shipping within warranty period

Shock Absorption System (12 months)

  • Front suspension
  • Rear suspension

Other Components

  • Pedals: 12 months
  • Footrest: 12 months
  • Saddle: 6 months
  • Tube clamp: 6 months
  • Lights: 6 months

Warranty Exclusions

This warranty does NOT cover:

  1. Normal wear and tear
  2. Damage from abuse, neglect, improper repair, improper maintenance, alteration, or modification
  3. Improper installation of third-party components, parts, or accessories
  4. Unauthorized modifications
  5. Battery damage from power surges, improper charger use, improper maintenance, or water damage
  6. Wear items such as brake pads, tires, tubes, and chains (normal consumables)
  7. Damage from accidents, misuse, or negligence
  8. Bikes with more than normal usage signs or modifications from original specifications

Customer Responsibilities

For warranty claims, customers are responsible for:

  • Labor costs for installing replacement parts
  • Operating costs associated with part installation
  • Taking the bike to a local certified bicycle repair shop (if applicable)

Warranty Claims Process

If you have any issues with your AOSTIRMOTOR electric bike, please contact Eco Bike USA at support@ecobikesusa.com. We will assist you in filing a warranty claim with the manufacturer.

Please provide:

  • Order information
  • Description of the issue
  • Photos or videos of the problem
  • Odometer reading (if applicable)

Important Notes

  • The warranty is only valid in the country/region where the bicycle was purchased
  • Shipping damage is covered under warranty when reported immediately upon delivery
  • Regular maintenance is required to keep your warranty valid
  • Keep your original order confirmation as proof of purchase

Shipping

When you place your order, you will receive an Order Confirmation with the details about your purchase.

We will process your order within 12 hours. If it's during business hours, it'll be much sooner. We know you want to receive your item(s) ASAP!

After your order is processed, it will ship within 2-3 business days and you'll receive a Shipment Confirmation with your tracking information. We will also notify you when your shipment is out for delivery and when it's been delivered.

Most orders are shipped via USPS, FedEx, UPS.

IMPORTANT: You must be present to sign for your order when it arrives. All of our e-bikes are shipped with "Signature Required" to ensure they arrive safely. After you receive your tracking information, you can know exactly when your order is going to arrive so you can make proper arrangements.

Do we charge sales tax on ebikes and accessories?

No we do not.

How Much Does Shipping Cost?

Shipping is FREE on all of our products (within the continental United States). No minimums required.

How Long Does It Take To Ship My Order?

As soon as we receive your order, we'll start processing it immediately. Your order will be dispatched to you in 1-3 working days.

How Long Would It Take To Receive My Order?

After your order is shipped, it will take between 3-8 working days for you to receive your items depending on your location.

How Do I Track My Shipment?

As soon as your order is shipped, we'll send you an email containing your tracking number. You can use it to track exactly where your order is.

Which Courier Will Deliver My Order?

We work with different shipping providers to ensure the fastest shipping times for you. Some of them are: UPS, FedEx, DHL, USPS as well as other premium couriers.

What Should I Do If My Order Is Damaged?

All of our manufacturers thoroughly inspect each item before it is shipped. However, please make sure you also inspect your item(s) when it arrives before you sign for it. If you see any visible damages, please sign for the item as "Damaged" and retain a copy of the bill/receipt.

After that, please contact us and we'll help you file a claim with the manufacturer. All damage claims are handled directly by our manufacturers.

Do You Ship Internationally?

At this moment, we only ship within the US.

Should I Be Present To Receive My Order?

All of our e-bikes are shipped with "Signature Required". This is to ensure your e-bike gets to you safely. You can make arrangements accordingly based on the date on your expected delivery tracking info.

AOSTIRMOTOR Electric Bike Return & Refund Policy

Return Eligibility

We accept return requests for non-defective or non-damaged electric bicycles within 30 days of delivery. Returns must be requested by contacting Eco Bike USA customer service within this timeframe. We will not accept returns after 30 days from the delivery date.

Return Conditions

To be eligible for a return, your AOSTIRMOTOR electric bike must meet ALL of the following conditions:

  • Less than 10 miles on the odometer
  • Free of any wear, dirt, dust, fragrance, or signs of use
  • In the same packaging and condition as received
  • Include ALL original items: bike, charger, keys, tool kit, and all accessories

Return Fees & Refunds

  • 15% processing fee will be charged on all bicycle returns
  • You will receive an 85% refund of the total order price
  • Products that have not yet shipped are subject to a 10% processing fee

Return Process

Important: Return applications are only accepted by email, not by phone.

  1. Submit Return Request

    Email your return request to support@ecobikesusa.com including:

    Order number and information
    Reason for return
    Clear photos of the bike

  2. Pack According to Instructions

    You must pack the bicycle according to our requirements, take photos after packing, and send them to us for approval
  3. Receive Authorization

    After receiving authorization from customer service, we will send you a prepaid return shipping label. Print and affix the label to the box.
  4. Refund Processing

    Your refund will be processed within 3 business days after our warehouse confirms receipt of the returned bike. Bank processing may cause slight delays.

Warning: Products returned without authorization from customer service will be rejected and returned to you at your expense.

Non-Returnable Items

The following items cannot be returned:

  • All parts and accessories
  • Special orders
  • Used products (except for extreme breakage/malfunction covered under warranty)

Defective or Damaged Products

If your bike arrives defective or damaged, this is covered under our warranty policy, not the return policy. Please contact us immediately at support@ecobikesusa.com with photos of the damage. We will be responsible for repairs or replacements at no charge to you.

Quality Guarantee

We promise that all electric bicycles received by our customers are brand new. We will never sell returned, refurbished, or clearance stock bicycles.

Description
FAQs
Warranty
Shipping
Returns

Conquer Any Terrain, Fold It Away Anywhere

The AOSTIRMOTOR A20 combines the versatility of a folding frame with the unstoppable traction of fat tires, creating the ultimate electric bike for adventurers who refuse to compromise. Whether you're navigating snowy trails, sandy beaches, or city streets, this 500W powerhouse delivers reliable performance while folding down small enough to fit in your trunk, RV, or apartment.

Perfect for: Urban commuters with limited storage, weekend adventurers, RV travelers, and anyone who wants an electric bike that goes anywhere and stores everywhere.

Key Features & Benefits

🚴 Powerful 500W Motor

  • Tackle steep hills up to 25° with ease
  • Reach speeds up to 20 mph (pedal assist) or 15 mph (throttle only)
  • Smooth, responsive acceleration for confident riding
  • Quiet brushless motor for peaceful rides

🔋 Long-Lasting 36V/13Ah Battery

  • Range: 25-40 miles per charge (depending on terrain, rider weight, and assist level)
  • Charge Time: 4-6 hours with included smart charger
  • Removable battery for convenient charging at home or office
  • Built-in battery management system protects against overcharge and extends lifespan

🛞 20" x 4.0" Fat Tires

  • Superior traction on sand, snow, mud, gravel, and pavement
  • Enhanced stability and shock absorption for comfortable rides
  • Puncture-resistant design reduces maintenance
  • Perfect for all-season, all-terrain riding

📦 Space-Saving Folding Design

  • Folds in seconds without tools
  • Folded Dimensions: Compact enough for car trunks, closets, and under desks
  • Weight: Approximately 68 lbs (manageable for most adults)
  • Ideal for multi-modal commuting and limited storage spaces

Ride Modes: Choose Your Adventure

The A20 offers three distinct riding modes to match your needs:

🔌 Pure Electric Mode (Throttle Only)

Twist the throttle and cruise up to 15 mph without pedaling. Perfect for when you need a break or want effortless transportation.

🚴 Pedal Assist Mode (PAS)

Choose from 5 levels of electric assistance that amplify your pedaling power. Great for exercise, extending range, and conquering hills.

💪 Manual Mode

Turn off the motor and ride it like a traditional bike. The 7-speed Shimano gears give you plenty of options for any terrain.

Safety & Control Features

✅ Dual Mechanical Disc Brakes - Reliable stopping power in all weather conditions
✅ Bright LED Headlight - Integrated front light for visibility and safety
✅ LCD Smart Display - Monitor speed, battery level, distance, and assist mode at a glance
✅ Reflective Elements - Enhanced visibility for night riding
✅ Sturdy Kickstand - Stable parking on any surface
✅ Bell Included - Alert pedestrians and other riders safely

What's Included

When your AOSTIRMOTOR A20 arrives, you'll receive everything you need to start riding:

  • ✓ AOSTIRMOTOR A20 Electric Bike (85% pre-assembled)
  • ✓ 36V/13Ah Removable Lithium Battery
  • ✓ Smart Battery Charger
  • ✓ Pedals
  • ✓ User Manual & Assembly Tools
  • ✓ Front and Rear Fenders (installed)
  • ✓ LED Headlight (installed)

Assembly Required: Minimal assembly needed - attach handlebars, pedals, and front wheel (approximately 20-30 minutes).

Why Choose the AOSTIRMOTOR A20?

✨ Versatility Meets Convenience

This isn't just another electric bike - it's a complete transportation solution. The folding frame means you can take it anywhere: store it in your apartment, bring it on your boat, pack it in your RV, or toss it in your trunk for weekend adventures.

🌍 All-Terrain Capability

Those 4-inch fat tires aren't just for show. They provide genuine all-terrain capability that standard e-bikes can't match. Ride confidently through:

  • Beach sand and boardwalks
  • Snow and ice
  • Gravel paths and dirt trails
  • Wet pavement and puddles
  • Rocky terrain

💰 Exceptional Value

Get premium features like a 500W motor, removable battery, fat tires, and folding frame at a price point that won't break the bank. This is serious performance without the luxury price tag.

🔧 Low Maintenance

The A20 is built with quality components that require minimal upkeep. Mechanical disc brakes are easy to service, the Shimano drivetrain is proven reliable, and the brushless motor is virtually maintenance-free.

Real-World Performance

Estimated Range by Riding Conditions:

Riding Condition Estimated Range
Flat terrain, PAS Level 1-2, 150 lb rider 35-40 miles
Mixed terrain, PAS Level 3, 180 lb rider 28-32 miles
Hilly terrain, PAS Level 4-5, 200 lb rider 25-28 miles
Throttle only, mixed terrain 20-25 miles

Note: Actual range varies based on rider weight, terrain, wind, temperature, tire pressure, and riding style.

Who Is This Bike For?

✅ Perfect For:

  • Commuters with limited storage space
  • RV and boat owners
  • Beach and trail enthusiasts
  • Riders who want all-terrain capability
  • Anyone needing a portable electric bike
  • Multi-modal commuters (bike + car/train/bus)
  • Apartment dwellers

⚠️ Consider Alternatives If:

  • You need maximum range (40+ miles)
  • You prefer a full-size, non-folding frame
  • You're looking for a lightweight bike (under 50 lbs)
  • You need a bike for riders under 5'3" or over 6'3"

Eco Bikes USA Advantage

When you buy from Eco Bikes USA, you get more than just a great bike:

✓ Free Delivery - We ship to your door at no extra cost
✓ Price Match Guarantee - Find it cheaper? We'll match it
✓ Same Day Processing - Order today, processed today (ships in 1-2 day)
✓ Excellent Customer Support - Real people ready to help
✓ 1-Year Warranty - Ride with confidence

Ready to Ride?

The AOSTIRMOTOR A20 delivers unbeatable versatility at an incredible value. Whether you're commuting to work, exploring trails, or just enjoying the freedom of electric riding, this fat tire folding e-bike is ready for anything.

Order today and experience the perfect blend of power, portability, and all-terrain capability.

All specifications are subject to manufacturer updates. Eco Bikes USA is not the manufacturer but an authorized retailer. Warranty service is provided through the manufacturer.

Frequently Asked Questions

How long does the battery last?

The 36V/13Ah battery provides 25-40 miles per charge, depending on conditions. Battery lifespan is typically 800-1000 charge cycles (3-5 years of regular use).

Can I ride it in the rain?

Yes, the A20 is water-resistant (not waterproof). Avoid deep puddles and submersion, but light rain is fine.

How fast can it go?

Up to 20 mph with pedal assist, 15 mph on throttle only.

Is it street legal?

Yes, in most states. The A20 meets Class 2 e-bike specifications (throttle + pedal assist, max 20 mph). Check your local regulations.

How much assembly is required?

Minimal - attach handlebars, front wheel, and pedals. Takes about 20-30 minutes with the included tools.

What's the weight limit?

Maximum load capacity is 330 lbs.

AOSTIRMOTOR Electric Bike Manufacturer's Warranty Policy

Warranty Coverage

All AOSTIRMOTOR electric bikes sold by Eco Bike USA are covered under a 1-year all-inclusive manufacturer's warranty for the original owner against manufacturing defects. This warranty is registered automatically when you receive your product and applies to the original purchaser only.

Note: Free accessories included with your purchase are not covered by warranty service.

Warranty Transfer

The warranty may be transferred to a new owner only if both conditions are met:

  • The 1-year warranty period has not expired since the original owner received the bike
  • The new owner has the original purchaser's name and order number

Comprehensive Coverage

Power System (12-18 months)

  • Battery: 18 months
  • Motor: 12 months
  • Controller: 12 months
  • Charger: 12 months
  • Display: 12 months
  • Throttle/Turn-Handle: 12 months
  • Power Sensor: 12 months

Free replacement parts and free shipping within warranty period

Structural System

  • Frame: 36 months
  • Fork: 12 months
  • Handlebar: 12 months
  • Middle Axle: 12 months
  • Chainring + Crank: 12 months
  • Rear Rack: 12 months

Guaranteed against factory workmanship and material defects

Brake System (12 months)

  • Brake lever
  • Disc brakes
  • Brake components

Free replacement parts and free shipping within warranty period

Wheel System

  • Rims: 12 months
  • Fenders: 6 months
  • Tires: 6 months

Speed System (12 months)

  • Derailleur
  • Gear shift lever
  • Chain
  • Turn-handle

Free replacement parts and free shipping within warranty period

Shock Absorption System (12 months)

  • Front suspension
  • Rear suspension

Other Components

  • Pedals: 12 months
  • Footrest: 12 months
  • Saddle: 6 months
  • Tube clamp: 6 months
  • Lights: 6 months

Warranty Exclusions

This warranty does NOT cover:

  1. Normal wear and tear
  2. Damage from abuse, neglect, improper repair, improper maintenance, alteration, or modification
  3. Improper installation of third-party components, parts, or accessories
  4. Unauthorized modifications
  5. Battery damage from power surges, improper charger use, improper maintenance, or water damage
  6. Wear items such as brake pads, tires, tubes, and chains (normal consumables)
  7. Damage from accidents, misuse, or negligence
  8. Bikes with more than normal usage signs or modifications from original specifications

Customer Responsibilities

For warranty claims, customers are responsible for:

  • Labor costs for installing replacement parts
  • Operating costs associated with part installation
  • Taking the bike to a local certified bicycle repair shop (if applicable)

Warranty Claims Process

If you have any issues with your AOSTIRMOTOR electric bike, please contact Eco Bike USA at support@ecobikesusa.com. We will assist you in filing a warranty claim with the manufacturer.

Please provide:

  • Order information
  • Description of the issue
  • Photos or videos of the problem
  • Odometer reading (if applicable)

Important Notes

  • The warranty is only valid in the country/region where the bicycle was purchased
  • Shipping damage is covered under warranty when reported immediately upon delivery
  • Regular maintenance is required to keep your warranty valid
  • Keep your original order confirmation as proof of purchase

Shipping

When you place your order, you will receive an Order Confirmation with the details about your purchase.

We will process your order within 12 hours. If it's during business hours, it'll be much sooner. We know you want to receive your item(s) ASAP!

After your order is processed, it will ship within 2-3 business days and you'll receive a Shipment Confirmation with your tracking information. We will also notify you when your shipment is out for delivery and when it's been delivered.

Most orders are shipped via USPS, FedEx, UPS.

IMPORTANT: You must be present to sign for your order when it arrives. All of our e-bikes are shipped with "Signature Required" to ensure they arrive safely. After you receive your tracking information, you can know exactly when your order is going to arrive so you can make proper arrangements.

Do we charge sales tax on ebikes and accessories?

No we do not.

How Much Does Shipping Cost?

Shipping is FREE on all of our products (within the continental United States). No minimums required.

How Long Does It Take To Ship My Order?

As soon as we receive your order, we'll start processing it immediately. Your order will be dispatched to you in 1-3 working days.

How Long Would It Take To Receive My Order?

After your order is shipped, it will take between 3-8 working days for you to receive your items depending on your location.

How Do I Track My Shipment?

As soon as your order is shipped, we'll send you an email containing your tracking number. You can use it to track exactly where your order is.

Which Courier Will Deliver My Order?

We work with different shipping providers to ensure the fastest shipping times for you. Some of them are: UPS, FedEx, DHL, USPS as well as other premium couriers.

What Should I Do If My Order Is Damaged?

All of our manufacturers thoroughly inspect each item before it is shipped. However, please make sure you also inspect your item(s) when it arrives before you sign for it. If you see any visible damages, please sign for the item as "Damaged" and retain a copy of the bill/receipt.

After that, please contact us and we'll help you file a claim with the manufacturer. All damage claims are handled directly by our manufacturers.

Do You Ship Internationally?

At this moment, we only ship within the US.

Should I Be Present To Receive My Order?

All of our e-bikes are shipped with "Signature Required". This is to ensure your e-bike gets to you safely. You can make arrangements accordingly based on the date on your expected delivery tracking info.

AOSTIRMOTOR Electric Bike Return & Refund Policy

Return Eligibility

We accept return requests for non-defective or non-damaged electric bicycles within 30 days of delivery. Returns must be requested by contacting Eco Bike USA customer service within this timeframe. We will not accept returns after 30 days from the delivery date.

Return Conditions

To be eligible for a return, your AOSTIRMOTOR electric bike must meet ALL of the following conditions:

  • Less than 10 miles on the odometer
  • Free of any wear, dirt, dust, fragrance, or signs of use
  • In the same packaging and condition as received
  • Include ALL original items: bike, charger, keys, tool kit, and all accessories

Return Fees & Refunds

  • 15% processing fee will be charged on all bicycle returns
  • You will receive an 85% refund of the total order price
  • Products that have not yet shipped are subject to a 10% processing fee

Return Process

Important: Return applications are only accepted by email, not by phone.

  1. Submit Return Request

    Email your return request to support@ecobikesusa.com including:

    Order number and information
    Reason for return
    Clear photos of the bike

  2. Pack According to Instructions

    You must pack the bicycle according to our requirements, take photos after packing, and send them to us for approval
  3. Receive Authorization

    After receiving authorization from customer service, we will send you a prepaid return shipping label. Print and affix the label to the box.
  4. Refund Processing

    Your refund will be processed within 3 business days after our warehouse confirms receipt of the returned bike. Bank processing may cause slight delays.

Warning: Products returned without authorization from customer service will be rejected and returned to you at your expense.

Non-Returnable Items

The following items cannot be returned:

  • All parts and accessories
  • Special orders
  • Used products (except for extreme breakage/malfunction covered under warranty)

Defective or Damaged Products

If your bike arrives defective or damaged, this is covered under our warranty policy, not the return policy. Please contact us immediately at support@ecobikesusa.com with photos of the damage. We will be responsible for repairs or replacements at no charge to you.

Quality Guarantee

We promise that all electric bicycles received by our customers are brand new. We will never sell returned, refurbished, or clearance stock bicycles.

Description
FAQs
Warranty
Shipping
Returns

Conquer Any Terrain, Fold It Away Anywhere

The AOSTIRMOTOR A20 combines the versatility of a folding frame with the unstoppable traction of fat tires, creating the ultimate electric bike for adventurers who refuse to compromise. Whether you're navigating snowy trails, sandy beaches, or city streets, this 500W powerhouse delivers reliable performance while folding down small enough to fit in your trunk, RV, or apartment.

Perfect for: Urban commuters with limited storage, weekend adventurers, RV travelers, and anyone who wants an electric bike that goes anywhere and stores everywhere.

Key Features & Benefits

🚴 Powerful 500W Motor

  • Tackle steep hills up to 25° with ease
  • Reach speeds up to 20 mph (pedal assist) or 15 mph (throttle only)
  • Smooth, responsive acceleration for confident riding
  • Quiet brushless motor for peaceful rides

🔋 Long-Lasting 36V/13Ah Battery

  • Range: 25-40 miles per charge (depending on terrain, rider weight, and assist level)
  • Charge Time: 4-6 hours with included smart charger
  • Removable battery for convenient charging at home or office
  • Built-in battery management system protects against overcharge and extends lifespan

🛞 20" x 4.0" Fat Tires

  • Superior traction on sand, snow, mud, gravel, and pavement
  • Enhanced stability and shock absorption for comfortable rides
  • Puncture-resistant design reduces maintenance
  • Perfect for all-season, all-terrain riding

📦 Space-Saving Folding Design

  • Folds in seconds without tools
  • Folded Dimensions: Compact enough for car trunks, closets, and under desks
  • Weight: Approximately 68 lbs (manageable for most adults)
  • Ideal for multi-modal commuting and limited storage spaces

Ride Modes: Choose Your Adventure

The A20 offers three distinct riding modes to match your needs:

🔌 Pure Electric Mode (Throttle Only)

Twist the throttle and cruise up to 15 mph without pedaling. Perfect for when you need a break or want effortless transportation.

🚴 Pedal Assist Mode (PAS)

Choose from 5 levels of electric assistance that amplify your pedaling power. Great for exercise, extending range, and conquering hills.

💪 Manual Mode

Turn off the motor and ride it like a traditional bike. The 7-speed Shimano gears give you plenty of options for any terrain.

Safety & Control Features

✅ Dual Mechanical Disc Brakes - Reliable stopping power in all weather conditions
✅ Bright LED Headlight - Integrated front light for visibility and safety
✅ LCD Smart Display - Monitor speed, battery level, distance, and assist mode at a glance
✅ Reflective Elements - Enhanced visibility for night riding
✅ Sturdy Kickstand - Stable parking on any surface
✅ Bell Included - Alert pedestrians and other riders safely

What's Included

When your AOSTIRMOTOR A20 arrives, you'll receive everything you need to start riding:

  • ✓ AOSTIRMOTOR A20 Electric Bike (85% pre-assembled)
  • ✓ 36V/13Ah Removable Lithium Battery
  • ✓ Smart Battery Charger
  • ✓ Pedals
  • ✓ User Manual & Assembly Tools
  • ✓ Front and Rear Fenders (installed)
  • ✓ LED Headlight (installed)

Assembly Required: Minimal assembly needed - attach handlebars, pedals, and front wheel (approximately 20-30 minutes).

Why Choose the AOSTIRMOTOR A20?

✨ Versatility Meets Convenience

This isn't just another electric bike - it's a complete transportation solution. The folding frame means you can take it anywhere: store it in your apartment, bring it on your boat, pack it in your RV, or toss it in your trunk for weekend adventures.

🌍 All-Terrain Capability

Those 4-inch fat tires aren't just for show. They provide genuine all-terrain capability that standard e-bikes can't match. Ride confidently through:

  • Beach sand and boardwalks
  • Snow and ice
  • Gravel paths and dirt trails
  • Wet pavement and puddles
  • Rocky terrain

💰 Exceptional Value

Get premium features like a 500W motor, removable battery, fat tires, and folding frame at a price point that won't break the bank. This is serious performance without the luxury price tag.

🔧 Low Maintenance

The A20 is built with quality components that require minimal upkeep. Mechanical disc brakes are easy to service, the Shimano drivetrain is proven reliable, and the brushless motor is virtually maintenance-free.

Real-World Performance

Estimated Range by Riding Conditions:

Riding Condition Estimated Range
Flat terrain, PAS Level 1-2, 150 lb rider 35-40 miles
Mixed terrain, PAS Level 3, 180 lb rider 28-32 miles
Hilly terrain, PAS Level 4-5, 200 lb rider 25-28 miles
Throttle only, mixed terrain 20-25 miles

Note: Actual range varies based on rider weight, terrain, wind, temperature, tire pressure, and riding style.

Who Is This Bike For?

✅ Perfect For:

  • Commuters with limited storage space
  • RV and boat owners
  • Beach and trail enthusiasts
  • Riders who want all-terrain capability
  • Anyone needing a portable electric bike
  • Multi-modal commuters (bike + car/train/bus)
  • Apartment dwellers

⚠️ Consider Alternatives If:

  • You need maximum range (40+ miles)
  • You prefer a full-size, non-folding frame
  • You're looking for a lightweight bike (under 50 lbs)
  • You need a bike for riders under 5'3" or over 6'3"

Eco Bikes USA Advantage

When you buy from Eco Bikes USA, you get more than just a great bike:

✓ Free Delivery - We ship to your door at no extra cost
✓ Price Match Guarantee - Find it cheaper? We'll match it
✓ Same Day Processing - Order today, processed today (ships in 1-2 day)
✓ Excellent Customer Support - Real people ready to help
✓ 1-Year Warranty - Ride with confidence

Ready to Ride?

The AOSTIRMOTOR A20 delivers unbeatable versatility at an incredible value. Whether you're commuting to work, exploring trails, or just enjoying the freedom of electric riding, this fat tire folding e-bike is ready for anything.

Order today and experience the perfect blend of power, portability, and all-terrain capability.

All specifications are subject to manufacturer updates. Eco Bikes USA is not the manufacturer but an authorized retailer. Warranty service is provided through the manufacturer.

Frequently Asked Questions

How long does the battery last?

The 36V/13Ah battery provides 25-40 miles per charge, depending on conditions. Battery lifespan is typically 800-1000 charge cycles (3-5 years of regular use).

Can I ride it in the rain?

Yes, the A20 is water-resistant (not waterproof). Avoid deep puddles and submersion, but light rain is fine.

How fast can it go?

Up to 20 mph with pedal assist, 15 mph on throttle only.

Is it street legal?

Yes, in most states. The A20 meets Class 2 e-bike specifications (throttle + pedal assist, max 20 mph). Check your local regulations.

How much assembly is required?

Minimal - attach handlebars, front wheel, and pedals. Takes about 20-30 minutes with the included tools.

What's the weight limit?

Maximum load capacity is 330 lbs.

AOSTIRMOTOR Electric Bike Manufacturer's Warranty Policy

Warranty Coverage

All AOSTIRMOTOR electric bikes sold by Eco Bike USA are covered under a 1-year all-inclusive manufacturer's warranty for the original owner against manufacturing defects. This warranty is registered automatically when you receive your product and applies to the original purchaser only.

Note: Free accessories included with your purchase are not covered by warranty service.

Warranty Transfer

The warranty may be transferred to a new owner only if both conditions are met:

  • The 1-year warranty period has not expired since the original owner received the bike
  • The new owner has the original purchaser's name and order number

Comprehensive Coverage

Power System (12-18 months)

  • Battery: 18 months
  • Motor: 12 months
  • Controller: 12 months
  • Charger: 12 months
  • Display: 12 months
  • Throttle/Turn-Handle: 12 months
  • Power Sensor: 12 months

Free replacement parts and free shipping within warranty period

Structural System

  • Frame: 36 months
  • Fork: 12 months
  • Handlebar: 12 months
  • Middle Axle: 12 months
  • Chainring + Crank: 12 months
  • Rear Rack: 12 months

Guaranteed against factory workmanship and material defects

Brake System (12 months)

  • Brake lever
  • Disc brakes
  • Brake components

Free replacement parts and free shipping within warranty period

Wheel System

  • Rims: 12 months
  • Fenders: 6 months
  • Tires: 6 months

Speed System (12 months)

  • Derailleur
  • Gear shift lever
  • Chain
  • Turn-handle

Free replacement parts and free shipping within warranty period

Shock Absorption System (12 months)

  • Front suspension
  • Rear suspension

Other Components

  • Pedals: 12 months
  • Footrest: 12 months
  • Saddle: 6 months
  • Tube clamp: 6 months
  • Lights: 6 months

Warranty Exclusions

This warranty does NOT cover:

  1. Normal wear and tear
  2. Damage from abuse, neglect, improper repair, improper maintenance, alteration, or modification
  3. Improper installation of third-party components, parts, or accessories
  4. Unauthorized modifications
  5. Battery damage from power surges, improper charger use, improper maintenance, or water damage
  6. Wear items such as brake pads, tires, tubes, and chains (normal consumables)
  7. Damage from accidents, misuse, or negligence
  8. Bikes with more than normal usage signs or modifications from original specifications

Customer Responsibilities

For warranty claims, customers are responsible for:

  • Labor costs for installing replacement parts
  • Operating costs associated with part installation
  • Taking the bike to a local certified bicycle repair shop (if applicable)

Warranty Claims Process

If you have any issues with your AOSTIRMOTOR electric bike, please contact Eco Bike USA at support@ecobikesusa.com. We will assist you in filing a warranty claim with the manufacturer.

Please provide:

  • Order information
  • Description of the issue
  • Photos or videos of the problem
  • Odometer reading (if applicable)

Important Notes

  • The warranty is only valid in the country/region where the bicycle was purchased
  • Shipping damage is covered under warranty when reported immediately upon delivery
  • Regular maintenance is required to keep your warranty valid
  • Keep your original order confirmation as proof of purchase

Shipping

When you place your order, you will receive an Order Confirmation with the details about your purchase.

We will process your order within 12 hours. If it's during business hours, it'll be much sooner. We know you want to receive your item(s) ASAP!

After your order is processed, it will ship within 2-3 business days and you'll receive a Shipment Confirmation with your tracking information. We will also notify you when your shipment is out for delivery and when it's been delivered.

Most orders are shipped via USPS, FedEx, UPS.

IMPORTANT: You must be present to sign for your order when it arrives. All of our e-bikes are shipped with "Signature Required" to ensure they arrive safely. After you receive your tracking information, you can know exactly when your order is going to arrive so you can make proper arrangements.

Do we charge sales tax on ebikes and accessories?

No we do not.

How Much Does Shipping Cost?

Shipping is FREE on all of our products (within the continental United States). No minimums required.

How Long Does It Take To Ship My Order?

As soon as we receive your order, we'll start processing it immediately. Your order will be dispatched to you in 1-3 working days.

How Long Would It Take To Receive My Order?

After your order is shipped, it will take between 3-8 working days for you to receive your items depending on your location.

How Do I Track My Shipment?

As soon as your order is shipped, we'll send you an email containing your tracking number. You can use it to track exactly where your order is.

Which Courier Will Deliver My Order?

We work with different shipping providers to ensure the fastest shipping times for you. Some of them are: UPS, FedEx, DHL, USPS as well as other premium couriers.

What Should I Do If My Order Is Damaged?

All of our manufacturers thoroughly inspect each item before it is shipped. However, please make sure you also inspect your item(s) when it arrives before you sign for it. If you see any visible damages, please sign for the item as "Damaged" and retain a copy of the bill/receipt.

After that, please contact us and we'll help you file a claim with the manufacturer. All damage claims are handled directly by our manufacturers.

Do You Ship Internationally?

At this moment, we only ship within the US.

Should I Be Present To Receive My Order?

All of our e-bikes are shipped with "Signature Required". This is to ensure your e-bike gets to you safely. You can make arrangements accordingly based on the date on your expected delivery tracking info.

AOSTIRMOTOR Electric Bike Return & Refund Policy

Return Eligibility

We accept return requests for non-defective or non-damaged electric bicycles within 30 days of delivery. Returns must be requested by contacting Eco Bike USA customer service within this timeframe. We will not accept returns after 30 days from the delivery date.

Return Conditions

To be eligible for a return, your AOSTIRMOTOR electric bike must meet ALL of the following conditions:

  • Less than 10 miles on the odometer
  • Free of any wear, dirt, dust, fragrance, or signs of use
  • In the same packaging and condition as received
  • Include ALL original items: bike, charger, keys, tool kit, and all accessories

Return Fees & Refunds

  • 15% processing fee will be charged on all bicycle returns
  • You will receive an 85% refund of the total order price
  • Products that have not yet shipped are subject to a 10% processing fee

Return Process

Important: Return applications are only accepted by email, not by phone.

  1. Submit Return Request

    Email your return request to support@ecobikesusa.com including:

    Order number and information
    Reason for return
    Clear photos of the bike

  2. Pack According to Instructions

    You must pack the bicycle according to our requirements, take photos after packing, and send them to us for approval
  3. Receive Authorization

    After receiving authorization from customer service, we will send you a prepaid return shipping label. Print and affix the label to the box.
  4. Refund Processing

    Your refund will be processed within 3 business days after our warehouse confirms receipt of the returned bike. Bank processing may cause slight delays.

Warning: Products returned without authorization from customer service will be rejected and returned to you at your expense.

Non-Returnable Items

The following items cannot be returned:

  • All parts and accessories
  • Special orders
  • Used products (except for extreme breakage/malfunction covered under warranty)

Defective or Damaged Products

If your bike arrives defective or damaged, this is covered under our warranty policy, not the return policy. Please contact us immediately at support@ecobikesusa.com with photos of the damage. We will be responsible for repairs or replacements at no charge to you.

Quality Guarantee

We promise that all electric bicycles received by our customers are brand new. We will never sell returned, refurbished, or clearance stock bicycles.

Description
FAQs
Warranty
Shipping
Returns

Conquer Any Terrain, Fold It Away Anywhere

The AOSTIRMOTOR A20 combines the versatility of a folding frame with the unstoppable traction of fat tires, creating the ultimate electric bike for adventurers who refuse to compromise. Whether you're navigating snowy trails, sandy beaches, or city streets, this 500W powerhouse delivers reliable performance while folding down small enough to fit in your trunk, RV, or apartment.

Perfect for: Urban commuters with limited storage, weekend adventurers, RV travelers, and anyone who wants an electric bike that goes anywhere and stores everywhere.

Key Features & Benefits

🚴 Powerful 500W Motor

  • Tackle steep hills up to 25° with ease
  • Reach speeds up to 20 mph (pedal assist) or 15 mph (throttle only)
  • Smooth, responsive acceleration for confident riding
  • Quiet brushless motor for peaceful rides

🔋 Long-Lasting 36V/13Ah Battery

  • Range: 25-40 miles per charge (depending on terrain, rider weight, and assist level)
  • Charge Time: 4-6 hours with included smart charger
  • Removable battery for convenient charging at home or office
  • Built-in battery management system protects against overcharge and extends lifespan

🛞 20" x 4.0" Fat Tires

  • Superior traction on sand, snow, mud, gravel, and pavement
  • Enhanced stability and shock absorption for comfortable rides
  • Puncture-resistant design reduces maintenance
  • Perfect for all-season, all-terrain riding

📦 Space-Saving Folding Design

  • Folds in seconds without tools
  • Folded Dimensions: Compact enough for car trunks, closets, and under desks
  • Weight: Approximately 68 lbs (manageable for most adults)
  • Ideal for multi-modal commuting and limited storage spaces

Ride Modes: Choose Your Adventure

The A20 offers three distinct riding modes to match your needs:

🔌 Pure Electric Mode (Throttle Only)

Twist the throttle and cruise up to 15 mph without pedaling. Perfect for when you need a break or want effortless transportation.

🚴 Pedal Assist Mode (PAS)

Choose from 5 levels of electric assistance that amplify your pedaling power. Great for exercise, extending range, and conquering hills.

💪 Manual Mode

Turn off the motor and ride it like a traditional bike. The 7-speed Shimano gears give you plenty of options for any terrain.

Safety & Control Features

✅ Dual Mechanical Disc Brakes - Reliable stopping power in all weather conditions
✅ Bright LED Headlight - Integrated front light for visibility and safety
✅ LCD Smart Display - Monitor speed, battery level, distance, and assist mode at a glance
✅ Reflective Elements - Enhanced visibility for night riding
✅ Sturdy Kickstand - Stable parking on any surface
✅ Bell Included - Alert pedestrians and other riders safely

What's Included

When your AOSTIRMOTOR A20 arrives, you'll receive everything you need to start riding:

  • ✓ AOSTIRMOTOR A20 Electric Bike (85% pre-assembled)
  • ✓ 36V/13Ah Removable Lithium Battery
  • ✓ Smart Battery Charger
  • ✓ Pedals
  • ✓ User Manual & Assembly Tools
  • ✓ Front and Rear Fenders (installed)
  • ✓ LED Headlight (installed)

Assembly Required: Minimal assembly needed - attach handlebars, pedals, and front wheel (approximately 20-30 minutes).

Why Choose the AOSTIRMOTOR A20?

✨ Versatility Meets Convenience

This isn't just another electric bike - it's a complete transportation solution. The folding frame means you can take it anywhere: store it in your apartment, bring it on your boat, pack it in your RV, or toss it in your trunk for weekend adventures.

🌍 All-Terrain Capability

Those 4-inch fat tires aren't just for show. They provide genuine all-terrain capability that standard e-bikes can't match. Ride confidently through:

  • Beach sand and boardwalks
  • Snow and ice
  • Gravel paths and dirt trails
  • Wet pavement and puddles
  • Rocky terrain

💰 Exceptional Value

Get premium features like a 500W motor, removable battery, fat tires, and folding frame at a price point that won't break the bank. This is serious performance without the luxury price tag.

🔧 Low Maintenance

The A20 is built with quality components that require minimal upkeep. Mechanical disc brakes are easy to service, the Shimano drivetrain is proven reliable, and the brushless motor is virtually maintenance-free.

Real-World Performance

Estimated Range by Riding Conditions:

Riding Condition Estimated Range
Flat terrain, PAS Level 1-2, 150 lb rider 35-40 miles
Mixed terrain, PAS Level 3, 180 lb rider 28-32 miles
Hilly terrain, PAS Level 4-5, 200 lb rider 25-28 miles
Throttle only, mixed terrain 20-25 miles

Note: Actual range varies based on rider weight, terrain, wind, temperature, tire pressure, and riding style.

Who Is This Bike For?

✅ Perfect For:

  • Commuters with limited storage space
  • RV and boat owners
  • Beach and trail enthusiasts
  • Riders who want all-terrain capability
  • Anyone needing a portable electric bike
  • Multi-modal commuters (bike + car/train/bus)
  • Apartment dwellers

⚠️ Consider Alternatives If:

  • You need maximum range (40+ miles)
  • You prefer a full-size, non-folding frame
  • You're looking for a lightweight bike (under 50 lbs)
  • You need a bike for riders under 5'3" or over 6'3"

Eco Bikes USA Advantage

When you buy from Eco Bikes USA, you get more than just a great bike:

✓ Free Delivery - We ship to your door at no extra cost
✓ Price Match Guarantee - Find it cheaper? We'll match it
✓ Same Day Processing - Order today, processed today (ships in 1-2 day)
✓ Excellent Customer Support - Real people ready to help
✓ 1-Year Warranty - Ride with confidence

Ready to Ride?

The AOSTIRMOTOR A20 delivers unbeatable versatility at an incredible value. Whether you're commuting to work, exploring trails, or just enjoying the freedom of electric riding, this fat tire folding e-bike is ready for anything.

Order today and experience the perfect blend of power, portability, and all-terrain capability.

All specifications are subject to manufacturer updates. Eco Bikes USA is not the manufacturer but an authorized retailer. Warranty service is provided through the manufacturer.

Frequently Asked Questions

How long does the battery last?

The 36V/13Ah battery provides 25-40 miles per charge, depending on conditions. Battery lifespan is typically 800-1000 charge cycles (3-5 years of regular use).

Can I ride it in the rain?

Yes, the A20 is water-resistant (not waterproof). Avoid deep puddles and submersion, but light rain is fine.

How fast can it go?

Up to 20 mph with pedal assist, 15 mph on throttle only.

Is it street legal?

Yes, in most states. The A20 meets Class 2 e-bike specifications (throttle + pedal assist, max 20 mph). Check your local regulations.

How much assembly is required?

Minimal - attach handlebars, front wheel, and pedals. Takes about 20-30 minutes with the included tools.

What's the weight limit?

Maximum load capacity is 330 lbs.

AOSTIRMOTOR Electric Bike Manufacturer's Warranty Policy

Warranty Coverage

All AOSTIRMOTOR electric bikes sold by Eco Bike USA are covered under a 1-year all-inclusive manufacturer's warranty for the original owner against manufacturing defects. This warranty is registered automatically when you receive your product and applies to the original purchaser only.

Note: Free accessories included with your purchase are not covered by warranty service.

Warranty Transfer

The warranty may be transferred to a new owner only if both conditions are met:

  • The 1-year warranty period has not expired since the original owner received the bike
  • The new owner has the original purchaser's name and order number

Comprehensive Coverage

Power System (12-18 months)

  • Battery: 18 months
  • Motor: 12 months
  • Controller: 12 months
  • Charger: 12 months
  • Display: 12 months
  • Throttle/Turn-Handle: 12 months
  • Power Sensor: 12 months

Free replacement parts and free shipping within warranty period

Structural System

  • Frame: 36 months
  • Fork: 12 months
  • Handlebar: 12 months
  • Middle Axle: 12 months
  • Chainring + Crank: 12 months
  • Rear Rack: 12 months

Guaranteed against factory workmanship and material defects

Brake System (12 months)

  • Brake lever
  • Disc brakes
  • Brake components

Free replacement parts and free shipping within warranty period

Wheel System

  • Rims: 12 months
  • Fenders: 6 months
  • Tires: 6 months

Speed System (12 months)

  • Derailleur
  • Gear shift lever
  • Chain
  • Turn-handle

Free replacement parts and free shipping within warranty period

Shock Absorption System (12 months)

  • Front suspension
  • Rear suspension

Other Components

  • Pedals: 12 months
  • Footrest: 12 months
  • Saddle: 6 months
  • Tube clamp: 6 months
  • Lights: 6 months

Warranty Exclusions

This warranty does NOT cover:

  1. Normal wear and tear
  2. Damage from abuse, neglect, improper repair, improper maintenance, alteration, or modification
  3. Improper installation of third-party components, parts, or accessories
  4. Unauthorized modifications
  5. Battery damage from power surges, improper charger use, improper maintenance, or water damage
  6. Wear items such as brake pads, tires, tubes, and chains (normal consumables)
  7. Damage from accidents, misuse, or negligence
  8. Bikes with more than normal usage signs or modifications from original specifications

Customer Responsibilities

For warranty claims, customers are responsible for:

  • Labor costs for installing replacement parts
  • Operating costs associated with part installation
  • Taking the bike to a local certified bicycle repair shop (if applicable)

Warranty Claims Process

If you have any issues with your AOSTIRMOTOR electric bike, please contact Eco Bike USA at support@ecobikesusa.com. We will assist you in filing a warranty claim with the manufacturer.

Please provide:

  • Order information
  • Description of the issue
  • Photos or videos of the problem
  • Odometer reading (if applicable)

Important Notes

  • The warranty is only valid in the country/region where the bicycle was purchased
  • Shipping damage is covered under warranty when reported immediately upon delivery
  • Regular maintenance is required to keep your warranty valid
  • Keep your original order confirmation as proof of purchase

Shipping

When you place your order, you will receive an Order Confirmation with the details about your purchase.

We will process your order within 12 hours. If it's during business hours, it'll be much sooner. We know you want to receive your item(s) ASAP!

After your order is processed, it will ship within 2-3 business days and you'll receive a Shipment Confirmation with your tracking information. We will also notify you when your shipment is out for delivery and when it's been delivered.

Most orders are shipped via USPS, FedEx, UPS.

IMPORTANT: You must be present to sign for your order when it arrives. All of our e-bikes are shipped with "Signature Required" to ensure they arrive safely. After you receive your tracking information, you can know exactly when your order is going to arrive so you can make proper arrangements.

Do we charge sales tax on ebikes and accessories?

No we do not.

How Much Does Shipping Cost?

Shipping is FREE on all of our products (within the continental United States). No minimums required.

How Long Does It Take To Ship My Order?

As soon as we receive your order, we'll start processing it immediately. Your order will be dispatched to you in 1-3 working days.

How Long Would It Take To Receive My Order?

After your order is shipped, it will take between 3-8 working days for you to receive your items depending on your location.

How Do I Track My Shipment?

As soon as your order is shipped, we'll send you an email containing your tracking number. You can use it to track exactly where your order is.

Which Courier Will Deliver My Order?

We work with different shipping providers to ensure the fastest shipping times for you. Some of them are: UPS, FedEx, DHL, USPS as well as other premium couriers.

What Should I Do If My Order Is Damaged?

All of our manufacturers thoroughly inspect each item before it is shipped. However, please make sure you also inspect your item(s) when it arrives before you sign for it. If you see any visible damages, please sign for the item as "Damaged" and retain a copy of the bill/receipt.

After that, please contact us and we'll help you file a claim with the manufacturer. All damage claims are handled directly by our manufacturers.

Do You Ship Internationally?

At this moment, we only ship within the US.

Should I Be Present To Receive My Order?

All of our e-bikes are shipped with "Signature Required". This is to ensure your e-bike gets to you safely. You can make arrangements accordingly based on the date on your expected delivery tracking info.

AOSTIRMOTOR Electric Bike Return & Refund Policy

Return Eligibility

We accept return requests for non-defective or non-damaged electric bicycles within 30 days of delivery. Returns must be requested by contacting Eco Bike USA customer service within this timeframe. We will not accept returns after 30 days from the delivery date.

Return Conditions

To be eligible for a return, your AOSTIRMOTOR electric bike must meet ALL of the following conditions:

  • Less than 10 miles on the odometer
  • Free of any wear, dirt, dust, fragrance, or signs of use
  • In the same packaging and condition as received
  • Include ALL original items: bike, charger, keys, tool kit, and all accessories

Return Fees & Refunds

  • 15% processing fee will be charged on all bicycle returns
  • You will receive an 85% refund of the total order price
  • Products that have not yet shipped are subject to a 10% processing fee

Return Process

Important: Return applications are only accepted by email, not by phone.

  1. Submit Return Request

    Email your return request to support@ecobikesusa.com including:

    Order number and information
    Reason for return
    Clear photos of the bike

  2. Pack According to Instructions

    You must pack the bicycle according to our requirements, take photos after packing, and send them to us for approval
  3. Receive Authorization

    After receiving authorization from customer service, we will send you a prepaid return shipping label. Print and affix the label to the box.
  4. Refund Processing

    Your refund will be processed within 3 business days after our warehouse confirms receipt of the returned bike. Bank processing may cause slight delays.

Warning: Products returned without authorization from customer service will be rejected and returned to you at your expense.

Non-Returnable Items

The following items cannot be returned:

  • All parts and accessories
  • Special orders
  • Used products (except for extreme breakage/malfunction covered under warranty)

Defective or Damaged Products

If your bike arrives defective or damaged, this is covered under our warranty policy, not the return policy. Please contact us immediately at support@ecobikesusa.com with photos of the damage. We will be responsible for repairs or replacements at no charge to you.

Quality Guarantee

We promise that all electric bicycles received by our customers are brand new. We will never sell returned, refurbished, or clearance stock bicycles.

Description
FAQs
Warranty
Shipping
Returns

Conquer Any Terrain, Fold It Away Anywhere

The AOSTIRMOTOR A20 combines the versatility of a folding frame with the unstoppable traction of fat tires, creating the ultimate electric bike for adventurers who refuse to compromise. Whether you're navigating snowy trails, sandy beaches, or city streets, this 500W powerhouse delivers reliable performance while folding down small enough to fit in your trunk, RV, or apartment.

Perfect for: Urban commuters with limited storage, weekend adventurers, RV travelers, and anyone who wants an electric bike that goes anywhere and stores everywhere.

Key Features & Benefits

🚴 Powerful 500W Motor

  • Tackle steep hills up to 25° with ease
  • Reach speeds up to 20 mph (pedal assist) or 15 mph (throttle only)
  • Smooth, responsive acceleration for confident riding
  • Quiet brushless motor for peaceful rides

🔋 Long-Lasting 36V/13Ah Battery

  • Range: 25-40 miles per charge (depending on terrain, rider weight, and assist level)
  • Charge Time: 4-6 hours with included smart charger
  • Removable battery for convenient charging at home or office
  • Built-in battery management system protects against overcharge and extends lifespan

🛞 20" x 4.0" Fat Tires

  • Superior traction on sand, snow, mud, gravel, and pavement
  • Enhanced stability and shock absorption for comfortable rides
  • Puncture-resistant design reduces maintenance
  • Perfect for all-season, all-terrain riding

📦 Space-Saving Folding Design

  • Folds in seconds without tools
  • Folded Dimensions: Compact enough for car trunks, closets, and under desks
  • Weight: Approximately 68 lbs (manageable for most adults)
  • Ideal for multi-modal commuting and limited storage spaces

Ride Modes: Choose Your Adventure

The A20 offers three distinct riding modes to match your needs:

🔌 Pure Electric Mode (Throttle Only)

Twist the throttle and cruise up to 15 mph without pedaling. Perfect for when you need a break or want effortless transportation.

🚴 Pedal Assist Mode (PAS)

Choose from 5 levels of electric assistance that amplify your pedaling power. Great for exercise, extending range, and conquering hills.

💪 Manual Mode

Turn off the motor and ride it like a traditional bike. The 7-speed Shimano gears give you plenty of options for any terrain.

Safety & Control Features

✅ Dual Mechanical Disc Brakes - Reliable stopping power in all weather conditions
✅ Bright LED Headlight - Integrated front light for visibility and safety
✅ LCD Smart Display - Monitor speed, battery level, distance, and assist mode at a glance
✅ Reflective Elements - Enhanced visibility for night riding
✅ Sturdy Kickstand - Stable parking on any surface
✅ Bell Included - Alert pedestrians and other riders safely

What's Included

When your AOSTIRMOTOR A20 arrives, you'll receive everything you need to start riding:

  • ✓ AOSTIRMOTOR A20 Electric Bike (85% pre-assembled)
  • ✓ 36V/13Ah Removable Lithium Battery
  • ✓ Smart Battery Charger
  • ✓ Pedals
  • ✓ User Manual & Assembly Tools
  • ✓ Front and Rear Fenders (installed)
  • ✓ LED Headlight (installed)

Assembly Required: Minimal assembly needed - attach handlebars, pedals, and front wheel (approximately 20-30 minutes).

Why Choose the AOSTIRMOTOR A20?

✨ Versatility Meets Convenience

This isn't just another electric bike - it's a complete transportation solution. The folding frame means you can take it anywhere: store it in your apartment, bring it on your boat, pack it in your RV, or toss it in your trunk for weekend adventures.

🌍 All-Terrain Capability

Those 4-inch fat tires aren't just for show. They provide genuine all-terrain capability that standard e-bikes can't match. Ride confidently through:

  • Beach sand and boardwalks
  • Snow and ice
  • Gravel paths and dirt trails
  • Wet pavement and puddles
  • Rocky terrain

💰 Exceptional Value

Get premium features like a 500W motor, removable battery, fat tires, and folding frame at a price point that won't break the bank. This is serious performance without the luxury price tag.

🔧 Low Maintenance

The A20 is built with quality components that require minimal upkeep. Mechanical disc brakes are easy to service, the Shimano drivetrain is proven reliable, and the brushless motor is virtually maintenance-free.

Real-World Performance

Estimated Range by Riding Conditions:

Riding Condition Estimated Range
Flat terrain, PAS Level 1-2, 150 lb rider 35-40 miles
Mixed terrain, PAS Level 3, 180 lb rider 28-32 miles
Hilly terrain, PAS Level 4-5, 200 lb rider 25-28 miles
Throttle only, mixed terrain 20-25 miles

Note: Actual range varies based on rider weight, terrain, wind, temperature, tire pressure, and riding style.

Who Is This Bike For?

✅ Perfect For:

  • Commuters with limited storage space
  • RV and boat owners
  • Beach and trail enthusiasts
  • Riders who want all-terrain capability
  • Anyone needing a portable electric bike
  • Multi-modal commuters (bike + car/train/bus)
  • Apartment dwellers

⚠️ Consider Alternatives If:

  • You need maximum range (40+ miles)
  • You prefer a full-size, non-folding frame
  • You're looking for a lightweight bike (under 50 lbs)
  • You need a bike for riders under 5'3" or over 6'3"

Eco Bikes USA Advantage

When you buy from Eco Bikes USA, you get more than just a great bike:

✓ Free Delivery - We ship to your door at no extra cost
✓ Price Match Guarantee - Find it cheaper? We'll match it
✓ Same Day Processing - Order today, processed today (ships in 1-2 day)
✓ Excellent Customer Support - Real people ready to help
✓ 1-Year Warranty - Ride with confidence

Ready to Ride?

The AOSTIRMOTOR A20 delivers unbeatable versatility at an incredible value. Whether you're commuting to work, exploring trails, or just enjoying the freedom of electric riding, this fat tire folding e-bike is ready for anything.

Order today and experience the perfect blend of power, portability, and all-terrain capability.

All specifications are subject to manufacturer updates. Eco Bikes USA is not the manufacturer but an authorized retailer. Warranty service is provided through the manufacturer.

Frequently Asked Questions

How long does the battery last?

The 36V/13Ah battery provides 25-40 miles per charge, depending on conditions. Battery lifespan is typically 800-1000 charge cycles (3-5 years of regular use).

Can I ride it in the rain?

Yes, the A20 is water-resistant (not waterproof). Avoid deep puddles and submersion, but light rain is fine.

How fast can it go?

Up to 20 mph with pedal assist, 15 mph on throttle only.

Is it street legal?

Yes, in most states. The A20 meets Class 2 e-bike specifications (throttle + pedal assist, max 20 mph). Check your local regulations.

How much assembly is required?

Minimal - attach handlebars, front wheel, and pedals. Takes about 20-30 minutes with the included tools.

What's the weight limit?

Maximum load capacity is 330 lbs.

AOSTIRMOTOR Electric Bike Manufacturer's Warranty Policy

Warranty Coverage

All AOSTIRMOTOR electric bikes sold by Eco Bike USA are covered under a 1-year all-inclusive manufacturer's warranty for the original owner against manufacturing defects. This warranty is registered automatically when you receive your product and applies to the original purchaser only.

Note: Free accessories included with your purchase are not covered by warranty service.

Warranty Transfer

The warranty may be transferred to a new owner only if both conditions are met:

  • The 1-year warranty period has not expired since the original owner received the bike
  • The new owner has the original purchaser's name and order number

Comprehensive Coverage

Power System (12-18 months)

  • Battery: 18 months
  • Motor: 12 months
  • Controller: 12 months
  • Charger: 12 months
  • Display: 12 months
  • Throttle/Turn-Handle: 12 months
  • Power Sensor: 12 months

Free replacement parts and free shipping within warranty period

Structural System

  • Frame: 36 months
  • Fork: 12 months
  • Handlebar: 12 months
  • Middle Axle: 12 months
  • Chainring + Crank: 12 months
  • Rear Rack: 12 months

Guaranteed against factory workmanship and material defects

Brake System (12 months)

  • Brake lever
  • Disc brakes
  • Brake components

Free replacement parts and free shipping within warranty period

Wheel System

  • Rims: 12 months
  • Fenders: 6 months
  • Tires: 6 months

Speed System (12 months)

  • Derailleur
  • Gear shift lever
  • Chain
  • Turn-handle

Free replacement parts and free shipping within warranty period

Shock Absorption System (12 months)

  • Front suspension
  • Rear suspension

Other Components

  • Pedals: 12 months
  • Footrest: 12 months
  • Saddle: 6 months
  • Tube clamp: 6 months
  • Lights: 6 months

Warranty Exclusions

This warranty does NOT cover:

  1. Normal wear and tear
  2. Damage from abuse, neglect, improper repair, improper maintenance, alteration, or modification
  3. Improper installation of third-party components, parts, or accessories
  4. Unauthorized modifications
  5. Battery damage from power surges, improper charger use, improper maintenance, or water damage
  6. Wear items such as brake pads, tires, tubes, and chains (normal consumables)
  7. Damage from accidents, misuse, or negligence
  8. Bikes with more than normal usage signs or modifications from original specifications

Customer Responsibilities

For warranty claims, customers are responsible for:

  • Labor costs for installing replacement parts
  • Operating costs associated with part installation
  • Taking the bike to a local certified bicycle repair shop (if applicable)

Warranty Claims Process

If you have any issues with your AOSTIRMOTOR electric bike, please contact Eco Bike USA at support@ecobikesusa.com. We will assist you in filing a warranty claim with the manufacturer.

Please provide:

  • Order information
  • Description of the issue
  • Photos or videos of the problem
  • Odometer reading (if applicable)

Important Notes

  • The warranty is only valid in the country/region where the bicycle was purchased
  • Shipping damage is covered under warranty when reported immediately upon delivery
  • Regular maintenance is required to keep your warranty valid
  • Keep your original order confirmation as proof of purchase

Shipping

When you place your order, you will receive an Order Confirmation with the details about your purchase.

We will process your order within 12 hours. If it's during business hours, it'll be much sooner. We know you want to receive your item(s) ASAP!

After your order is processed, it will ship within 2-3 business days and you'll receive a Shipment Confirmation with your tracking information. We will also notify you when your shipment is out for delivery and when it's been delivered.

Most orders are shipped via USPS, FedEx, UPS.

IMPORTANT: You must be present to sign for your order when it arrives. All of our e-bikes are shipped with "Signature Required" to ensure they arrive safely. After you receive your tracking information, you can know exactly when your order is going to arrive so you can make proper arrangements.

Do we charge sales tax on ebikes and accessories?

No we do not.

How Much Does Shipping Cost?

Shipping is FREE on all of our products (within the continental United States). No minimums required.

How Long Does It Take To Ship My Order?

As soon as we receive your order, we'll start processing it immediately. Your order will be dispatched to you in 1-3 working days.

How Long Would It Take To Receive My Order?

After your order is shipped, it will take between 3-8 working days for you to receive your items depending on your location.

How Do I Track My Shipment?

As soon as your order is shipped, we'll send you an email containing your tracking number. You can use it to track exactly where your order is.

Which Courier Will Deliver My Order?

We work with different shipping providers to ensure the fastest shipping times for you. Some of them are: UPS, FedEx, DHL, USPS as well as other premium couriers.

What Should I Do If My Order Is Damaged?

All of our manufacturers thoroughly inspect each item before it is shipped. However, please make sure you also inspect your item(s) when it arrives before you sign for it. If you see any visible damages, please sign for the item as "Damaged" and retain a copy of the bill/receipt.

After that, please contact us and we'll help you file a claim with the manufacturer. All damage claims are handled directly by our manufacturers.

Do You Ship Internationally?

At this moment, we only ship within the US.

Should I Be Present To Receive My Order?

All of our e-bikes are shipped with "Signature Required". This is to ensure your e-bike gets to you safely. You can make arrangements accordingly based on the date on your expected delivery tracking info.

AOSTIRMOTOR Electric Bike Return & Refund Policy

Return Eligibility

We accept return requests for non-defective or non-damaged electric bicycles within 30 days of delivery. Returns must be requested by contacting Eco Bike USA customer service within this timeframe. We will not accept returns after 30 days from the delivery date.

Return Conditions

To be eligible for a return, your AOSTIRMOTOR electric bike must meet ALL of the following conditions:

  • Less than 10 miles on the odometer
  • Free of any wear, dirt, dust, fragrance, or signs of use
  • In the same packaging and condition as received
  • Include ALL original items: bike, charger, keys, tool kit, and all accessories

Return Fees & Refunds

  • 15% processing fee will be charged on all bicycle returns
  • You will receive an 85% refund of the total order price
  • Products that have not yet shipped are subject to a 10% processing fee

Return Process

Important: Return applications are only accepted by email, not by phone.

  1. Submit Return Request

    Email your return request to support@ecobikesusa.com including:

    Order number and information
    Reason for return
    Clear photos of the bike

  2. Pack According to Instructions

    You must pack the bicycle according to our requirements, take photos after packing, and send them to us for approval
  3. Receive Authorization

    After receiving authorization from customer service, we will send you a prepaid return shipping label. Print and affix the label to the box.
  4. Refund Processing

    Your refund will be processed within 3 business days after our warehouse confirms receipt of the returned bike. Bank processing may cause slight delays.

Warning: Products returned without authorization from customer service will be rejected and returned to you at your expense.

Non-Returnable Items

The following items cannot be returned:

  • All parts and accessories
  • Special orders
  • Used products (except for extreme breakage/malfunction covered under warranty)

Defective or Damaged Products

If your bike arrives defective or damaged, this is covered under our warranty policy, not the return policy. Please contact us immediately at support@ecobikesusa.com with photos of the damage. We will be responsible for repairs or replacements at no charge to you.

Quality Guarantee

We promise that all electric bicycles received by our customers are brand new. We will never sell returned, refurbished, or clearance stock bicycles.

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