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aostirmotor

aostirmotor 500W Folding Electric Bike for Adults 20"×4" Fat Tire Electric Bike 36V 13AH Removable Lithium Battery Adult Electric Bicycles, 25MPH E Bike for Adults, Shimano 7 Speed Ebike (Black)

  • Based on 119 reviews
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Color: Black


Features

  • 500W (Peak 550W) high-speed brushless motor provides e-bike max speed up to 25 mph. 20"x4" wearproof fat tires fit for multiple terrains, excellent grip and skid resistance. 75NM of torque, suitable for riding on beach, snow, rough terrain and street.
  • Ebike with 36V 13Ah removable large capacity lithium battery, 4-6 hours fast charging. Battery is removable, waterproof and convenient to bring home or office for charging.
  • Foldable electric bike can be easily folded, reducing its size by over half, making it perfect for efficient storage in your car trunk or hassle-free commuting on the subway. Folded size: 35.4 x 27.6 inches ensures that you can take it with you anywhere you go without any hassle.
  • Provides 3 riding modes: Pedal Assist; Pure Electric; Normal Bike. 28+ Miles by pedal assist; 18+ Miles by pure throttle. (this is calculated based on the rider's weight of 80kg, range varies based on road conditions, weather, rider weight, etc.).
  • Folding Electric bikes for adults are 95% pre-assembled. Electric bicycles use 866-LCD display, HD LCD display clearly shows speed, power, mileage and electricity. Recommended Height 5.2-6.3 FT.
  • All AOSTIRMOTOR Ebikes are 365 days warranty (battery, motor, controller, display and other Non-wearing parts),and lifetime technical support are covered .You can let us know if you encounter any problems, we have professional after-sales personnel and technicians to help you solve the problem.

Bike Type: Folding Electric Bike


Age Range (Description): Adult


Brand: aostirmotor


Number of Speeds: 7


Color: Black(with lock)


Wheel Size: 20 Inches


Frame Material: Aluminum


Suspension Type: Rigid


Special Feature: Digital Display, Lightweight, Foldable


Included Components: Tool Kit


Bike Type: ‎Folding Electric Bike


Age Range (Description): ‎Adult


Brand: ‎aostirmotor


Number of Speeds: ‎7


Color: ‎Black(with lock)


Wheel Size: ‎20 Inches


Frame Material: ‎Aluminum


Suspension Type: ‎Rigid


Special Feature: ‎Digital Display, Lightweight, Foldable


Included Components: ‎Tool Kit


Size: ‎Large


Brake Style: ‎Disc


Wheel Width: ‎4 Inches


Specific Uses For Product: ‎Trail


Item Weight: ‎74 Pounds


Theme: ‎Sport


Model Name: ‎A20


Power Source: ‎Electric


Wattage: ‎500 watts


Wheel Material: ‎Alloy Steel


Lithium Battery Energy Content: ‎0.47 Kilowatt Hours


Seat Material Type: ‎Aluminum


Warranty Type: ‎365 Days Warranty


Maximum Weight Recommendation: ‎260 Pounds


Assembly Required: ‎Yes


Bicycle Gear Shifter Type: ‎Trigger


Number of Handles: ‎2


Skill Level: ‎Beginner


Minimum User Height: ‎5.2 Feet


UPC: ‎616859173460


Bicycle Drivetrain Type: ‎Derailleur


Electric Assist Type: ‎Throttle-on-demand


Manufacturer: ‎ELFF BIKE CO.,LIMITED


Item Package Dimensions L x W x H: ‎54 x 25 x 11 inches


Package Weight: ‎74 Pounds


Item Dimensions LxWxH: ‎66 x 11 x 41 inches


Brand Name: ‎aostirmotor


Warranty Description: ‎1 year


Material: ‎Aluminum


Suggested Users: ‎unisex-adult


Part Number: ‎A20


Date First Available: February 1, 2021


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • easy to assemble responded to email questions will attach video tomorrow
Review Image by Saturnina Rosario Saturnina Rosario
Review Image by Saturnina Rosario Saturnina Rosario
Review Image by Saturnina Rosario Saturnina Rosario
Review Image by Saturnina Rosario Saturnina Rosario
I usually ride a 26 inch bike but with a fat tire bike a 20 inch bike fit is much better more comfortable easy to fold easy to assemble I am enjoying it my main advise is anyone buying a fat tire bike for the fist time remember fat tires add 3 inches to the bike keep that in mind when sizing your bike Also I noticed some posts about not being able to get motor to start make sure the battery is lined up and pushed completely in also make sure the battery locks into position well and the key is in the on position when you utilize the peddle assist I love the bike fit the peddle assist works great battery charged completely in 4 hours. This bike has given me additional freedom and ability to get some exercise ... show more
Reviewed in the United States on May 22, 2023 by Saturnina Rosario Saturnina Rosario
    • Struggle Win
I ordered this Bike for my 8-year-old son for Christmas. Everything assembled easy and the Bike looked great, but the battery would not seat down into the proper position, so when he was riding it, the bike would just shut off. After many conversations with their customer service which was good once I got in touch with someone might I add but it was a common issue and they quickly sent me out a new battery casing. It was easy to install and once I got it on and got the battery slide adjusted properly the bike worked great and so far, we have not had any issues with it. We are coming upon 7 months of ownership with 5 of those months of consistent riding. Now after many camping trips and a few off road rides the bike is still going strong without any issues. I would recommend this bike for the value to any young or even adult person for their first E-Bike. Just remember this is a 20-inch bike and due to being a Fat Tire Bike it will add around 3 inches in height. Great Bike! ... show more
Reviewed in the United States on July 27, 2023 by Sally
    • Great bike
I'm not a fan of buying certain things online. That being said, things shoes, clothes, food. And now bikes. This was great and fun to ride but yet was 1 problem, it was too tall in the seating for me to comfortably place my feet on the ground. I had the seat all the way down but still had me on my toes at every stop. So this is 1 of the things you try on first. Like clothing. ... show more
Reviewed in the United States on October 26, 2023 by Terry curtis
    • too heavy
the bike is way too heavy, its hard tp assemble, the light doesn't even work. alot of things about this bike doesn't make sense. The latch to fold in half doesn't even designed right, its broke, i cant even snap it tight like it supposed to. I am affraid one of these days as i m riding the bike, and the bike starts to fold in the process, i will be in deep troulble, i must get it fix before i can ride this, but i don't know where to go to get it fix? any suggestions? ... show more
Reviewed in the United States on May 4, 2021 by Steven vu
    • Impressive ebike with speed and durability.
I was really impressed with the ease of assembly. The tools are supplied and it was very easy to assemble. The bike is solid. Looks like it can really take a beating. Top speed is accurately advertised and the pedal assist will get you to top speed faster especially when going up hill. Electronics are great and the seat is comfortable. I am 6'5 and 275 lbs and the bike carries me well. Very enjoyable ride. Glad I made the purchase and highly recommend this bike to anyone in the market. ... show more
Reviewed in the United States on May 11, 2021 by Rob
    • Power strong but many problems
Review Image by Snow Snow
Review Image by Snow Snow
Review Image by Snow Snow
Review Image by Snow Snow
Review Image by Snow Snow
The media could not be loaded. First of all, I'll say that the “500W Motor”, “20" x 4.0 Fat Tire” electric bike, this is one of the cheapest, but that doesn't mean the quality of the product is good. When I received it, I found a lot of problems, some small problems, such as the peeling paint; and some were potentially big problems, such as a noisy front wheel and the rear tire. I emailed the problems to the customer service center, and they sent me a video of how to install the rear wheel, which I tried to do. As for the front wheel noise, it was temporarily resolved after I used WD-40. However, two months later, I found that the noise became more and more serious. After some careful inspection, it was found that the front wheel turned irregularly, non-circular. I found that the axle was bent, and the wheel and brake disc was deformed. I reported to the customer service center again, and about 10 days later received a new front wheel rim, it only a rim, no tires, so I had to remove the original tire and install it on the new rim. After installing the new wheel hub, the front brake made a serious noise, and I had to remove the front brake to adjust, and put it back on again, the problem was solved. I don't know what other problems I will encounter next, but I hope the charging is safe and the battery will not explode. As for the feeling of riding a bike, I would like to say that with 500W of power, the acceleration is extremely strong, even too strong when you just want to ride slowly, you can only turn off the power, otherwise every time you step on the pedal will have very strong acceleration, and you'll have to use the brake for slowly. So, if you want power ride, strong acceleration, and a cheap electric bike, this is a good choice, but you have to solve various problems yourself. If you want a hassle-free, leisurely bike, it is recommended that you would rather spend a little more before buying a better-quality bike. ... show more
Reviewed in the United States on November 20, 2023 by Snow Snow
    • Not easy to assemble without video instructions
Had to take product to bike shop as flip-up seat did not work, both tires were not seated on rims and some parts missing. Lousy assembly instructions, should have had included up-to-date link to video instructions.
Reviewed in the United States on May 1, 2024 by J. Williams
    • Is that it was easy to assemble
It got me to work with no problem
Reviewed in the United States on May 6, 2024 by Fred

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