Electric Bicycle Single weight, 22.0 kg Product volume, 135.0cm*19.0cm*70.0cm Wheel size, 24 inches, 26 inches, 27.5 inches, 29 inches, width 2.125, 2.35 Optional speed: 21 speed, 24 speed, 27 speed, 30 speed Rim type: three-axis wheel, spoke wheel Painting: Logo can be customized, inside the painting Material: high carbon steel, aluminum alloy Motor power: 300w Climbing grade: 30掳 Carrying capacity: single Applicable voltage: 36V Brake type: double disc brake + power-off brake Fork: Thickened suspension fork Suitable height: 150-185cm Suitable weight: 鈮?50kg Suitable for people: adults Optional configuration, copy Pin Shimano transmission, Shimano genuine transmission, Shimano front and rear fingers, Shimano genuine gears, internal wiring, hydraulic brakes, aluminum alloy spoke wheels, aluminum alloy handlebars Suitable for terrain: mountain, road Tire options: kenda tires, Magis tires Motor type: permanent magnet high-speed brushless motor, with screw crimping g structure, brushless motor contact with internal equipment, stable running resistance, fast speed, strong power output, waterproof and anti-theft battery box, detachable charging design, aluminum alloy double layer Motor wheel set, total length 1690mm, wheel diameter 660mm, distance between seat and ground is 940mm, distance between handlebar and seat is 810mm, distance between handlebar and ground is 980mm Gears: 7/9 positioning gears Battery type: 36V lithium battery Charging time: 4-6 hours Pure electric mileage: 45-90KM Power mileage: 90-180KM Color: black red, black blue, black orange Model: Lithium battery electric mountain bike d37Electric Bicycle website:http://www.sgbmountainbike.com/electric-bicycle/