Powerful fat tire electric bike with Strong driving force 500W Motor and 36V 12.5AH removable Lithium battery. The battery is removable, so you can take the battery to your home or office to recharge. Charging time: 6-8 hours. Shipping weight 66.1 lb. Max Speed: 20 Mph (Electric Only, Rider weight<132LBS ,flat road and full power). Distance Per Charge：18-23 miles, the range depends on whether you use pedal assist power more or throttle power more. Come with pedal assist and walk assist model. 20'' X 4.0'' Fat Tire For All Terrain. Tire size: 20 * 4.0”, Inner tube: 20×4.0/4.9, Anti-skidding, adapt to snow, sand and other complex topography. Front and Rear Disc Brakes. Aluminum Frame. Maximum load capacity: 90kg，200lbs. SIZE [Total length: 1768mm; The height of the bicycle's handle bar to the ground: 1150mm; The height of the saddle to ground (lowest/highest):840-990mm; Center distance of two wheels: 1185mm]. Small deviations may exist, but they will be within the margin of error. Throttle Type: Variable Speed Control - 1/2 Twist Throttle. Outage braking system and Mechanical braking system, work along both lines, provide security for your trip. Battery lock and power lock function. Notice: To keep the battery alive, our warehouse uses an extension charging cord (batteries need to be charged regularly to keep them alive), the cord is no use for you. If you receive this cord, please ignore it, there is a professional charger in our packages, please use the correct charging equipment to charge.