6061 aluminum alloy bike folding frame is strong and sturdy, ensuring long-term durability with 20 fat tire. 750W motor allows for fast speeds of up to 20 MPH. Integrated removable 48V lithium-ion battery offers up to 50 miles range on a full charge on pedal assist (charging time: 4-5 hours). Suitable for day and night riding with four modes: Pedal Assist, Throttle, Manual, and Walk. Five pedal assist levels provide enough power for riding across various terrains. Fat tire 20x4 puncture-resistant tires handle tough rides with ease. Front shock suspension provides comfort on uneven, rocky, singletrack, or potholed roads. Dual disc brakes let you come to a complete stop quickly. LCD screen provides speedometer, odometer, pedal assist level, and battery gauge. Built-in front and back headlights deliver better visibility for you and others on the road. Other features: Weight capacity: 330 lb, kickstand included, front and rear fender included, rear rack included