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⚡500W Rear Hub Brushless Motor
⚡36V/13Ah Seat-Tube Mounted Removable Battery
⚡5-Level Pedal Assist System (PAS) w/ Speed Sensor + Right side Twist Throttle & 7-Speed Gears
⚡Front and Rear Mechanical Disk Brakes

Aostirmotor A20 Description
Wow, the A20 Fat Tire Folding Electric Bike is such an amazing ebike for the price. You get a portable off-road riding monster with a high-torque 500W rear hub motor, a 5-level pedal assist system (PAS) and a twist throttle.
If you travel in an RV, the A20 is perfect for trips to town, and trips to the outback. And if you just want a that's easy and fun to ride, the A20 is your ticket.
A20 Specifications
- Motor: Truckrun Brand 500W Rear Hub Brushless Motor
- Battery: 36V/13Ah Lithium-Ion Seat-Tube Mounted Removable Battery
- Controller: 36V/22Ah Controller
- Charger: 110V - 220V
- Display: 866-LCD Display
- Drive Mode: 5-Level Pedal Assist System (w/ Speed Sensor), Right Side Half-Twist Throttle & 7-Speed Shimano Sunrace Derailleur
- Charge Time: 4-6 Hours
- Brake: Tektro Mechanical Disc Brakes w/ 180mm Front & 160mm Rear Rotors
- Max Speed: 15 mph.
- Fork: Aluminum Alloy Rigid Fork
- Frame: 6061 Lightweight Aluminum Alloy Folding Frame
- Handlebar Dimension: 31.8mm x 660mm
- Stem: 28.6mm x 31.8mm x 110mm
- Tire: 20” x 4” Chaoyang Fat Tires Mounted on Aluminum Alloy Spoked Wheels
- Saddle: Folding Saddle
- Lights: LED Front Headlight and Rear Reflector
- Pedals: Folding Pedals
- Fenders: Black Plastic Fenders
- Weight: 64 Lbs.
- Bike Dimensions: (L x H) 69.2” x 48”
- Folded Dimensions: 35” x 27.5”
- Box Dimensions & Weight: 55” x 11” x 26.7” (75 Lbs.)
- Wheelbase: 45”
- Wheel Diameter: 22”
- Minimum Seat Height: 31.4”
- Maximum Seat Height: 36.2”
- Standover Height: 25”
- Handlebar Length: 25”
- Max Weight Capacity: 260 Lbs.
- Rear Rack: Optional
- Assembly: The A20 comes mostly assembled. Final assembly includes attachment of the pedals, handlebars, front wheel, seat, fender, and light. Please see the assembly video below.
- Tools Required: 4mm, 5mm and 6mm hex (Allen) keys, and 8mm/10mm and 13mm/15mm wrenches (Included)
- Shipping: Free shipping to the lower 48. For shipping to Canada, your shipping address and the products you want, and we will find the best rate available. We cannot ship this brand to Alaska or Hawaii at this time.
Aostirmotor A20 Assembly Instructions
This video provides step-by-step instructions to assist with the unboxing and assembly of your new Aostirmotor A20 500W ebike.