This is the electric bicycle that reaches a top speed of 20 mph on any terrain and quickly folds down to fit in a closet or car trunk. Its 500-watt motor assists a rider while pedaling or enables effortless cruising across asphalt, dirt, or grass on puncture-resistant 20" double-wall tires. Controls on the handlebars operate the six-speed Shimano gears and enable the rider to manage the power of the removable, rechargeable 48-volt battery. With front and rear disc brakes, front shock suspension, LED headlight, and a display that provides speed, distance, and battery power readouts. A four-hour charge via AC provides a 36-mile assisted range or 18-mile range at full power. Seat adjusts for riders 5' 4" and taller.  Supports up to 300 lbs. Assembly required. Black. Lightweight yet durable aluminum frame folds to 37" L x 20" W x 30" H. Unfolded 54" L x 24" W x 451/2" H. (66 lbs.)