Ecotric 20" Fat Tire Folding 36V 500W Electric Bike


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The FAT20810 series features the 500 Watt Rear Hub Motor with a 36v Lithium Cell Removable Battery to provide riding distances of ~45 miles per charge. The bike features both pedal assist and throttle only mode. Equipped with comfortable but compact 20" x 4" tires, this fat tire electric bike can be conveniently folded in order to store and transport the bike more easily. It has the ability to take on many tasks you would not expect from a portable and folding bike such as hauls from the grocery store, challenging terrain, and rough roads*. Get ECOTRIC, go further, and have more fun with the price under $1,000!

Featuring a durable and sturdy aluminum alloy frame. Only takes 5-8 hours to completely charge, while one charge can run ~45 miles (depending on the terrain and the weight of the rider)*. This folding fat tire electric bike comes with a comfortable seat that is adjustable*.

 *Riders must practice safety and wear a helmet when riding the bike. Max Speed & Mileage is not guaranteed and depends on rider weight & terrain. Distance obtainable when using SPAS.


  • Battery: 36v 12AH Removable
  • Motor Type: Rear Hub 36V 500W
  • Amps: 12AH
  • Volts: 36V
  • Distance: Single Charge Is ~45 Miles*
  • Display: Ecotric Smart LED
  • Throttle Type: Pedal Assist On-Demand Throttle
  • Frame: Aluminium Alloy
  • Speed Sensor
  • Derailleur: Shimano 7 Speed
  • Pedal: Standard Black Pedal
  • Front & Rear Brakes: Tektro Novela Mechanical Disc 160mm Rotor
  • Tire: 20" x 4" Fat Bike Tires
  • Fenders: Included, Front & Rear
  • Battery Charger Time: 5-8 Hours* (Depends On Battery Status)
  • Battery Life: Up to 1000 cycles*
  • Assembly Instructions & tool kit, Reflector, Battery Charger
  • Variable Speed
  • Recommended Rider: 4’8”- 5’8”
  • Max Rider Weight: 220 lb 
  • Bike Gross Weight: 52 lbs.
  • *Max Speed & Mileage is not guaranteed and depends on rider weight & terrain. Distance obtainable when using SPAS.


Most in-stock items ordered by 2PM Eastern Time ship within 1-2 business days! Tracking information is provided upon shipment. Learn more about our Shipping Policy.

Signature Required:

    • All E-bikes will be shipped using the signature required option which will guarantee the product must be signed for and it will NOT be left at the delivery address if the recipient is not available to sign for it. By placing your order with for an Electric Bicycle you agree to have the bicycle shipped with the signature required at time of delivery. It is the customer's responsibility to be present at the time of delivery. is not responsible for packages that have been left at the recipient’s door and consequently lost and/or stolen. We will file a lost claim with the carrier, however if they deny that claim we will not be able to make any reimbursements.


Assembly required, ships 80-90% assembled. Bicycle is easy to assemble with basic bicycle knowledge, however, we strongly encourage having your bike professionally assembled.

Assembly Videos:


Find a complete list of assembly videos on the Ecotric Youtube Playlist.


Warranty: 2 Year Warranty against manufacturing defects in materials or workmanship on its frame, battery, motor, controller, and display.
Learn more about our Warranty Policy.


Free return 30-Day At-Home Trial: Learn more about the Ecotric Return Policy.

Customer Reviews

Based on 3 reviews
Fat tire crushin'

I'm telling you, this is the best folding mini fat tire you can buy at this price. I searched high and low on the web, this thing kills it.

Nice bike!

Wish it was lighter, but still awesome and you don't feel ANY of the weight when you ride, its amazing how that works. Love it.

Happy Kim

I got the blue wheel model, so cute, and get so many compliments on this. My brother keeps stealing it! Lol