750W Brushless Motor with a Peak of 1000W Accelerate swiftly and slope roads with a powerful 750W motor (1000W peak power), and it can easily handle 10 degree slopes. 20*4.0 Fat Tires Add further stability, safety, and confidence for riders of all experience levels on/off-road in variable traction conditions. Dual Shock and disc Systems Dual shock systems extend from its front hydraulic shock to the rear air shock. 2 times more powerful shock absorbance than normal bikes.The front and rear wheels are equipped with a double disc brake system with fast heat dissipation design to ensure smooth braking and safe braking situations. Shimano 7-Speed Gears Gearing is provided by a Shimano 7-speed derailleur which delivers reliable and accurate gear shifting. Light-weight Aluminum Alloy Frame M20 is made of lightweight aluminum alloy, the whole bike is 40% lighter than bikes using high carbon steel. Specification: Material：6061 aluminum alloy Size：20 x 4.0 inches Motor：750W brushless motor Max speed:25 km/h (Speed can be unlocked) Range:55-75km Torque: 55 N.m 26Ah Battery : 48V13Ah Lithium-Ion Battery *2 Charging Time: about 5H Maximum Climbing degree: 10° Brake: 160mm front & rear disc machine brake Transmission System: Shimano 7 Gears Bike Weight: 34.8KG Gross Weight: 40.5KG Maximum Load: 120KG Advise Rider Height: 155-210cm Package Size: 140*32*85cm Unfolding Size: 167*114*68cm Package includes:  1x M20 Ebike 2x 48V13Ah Lithium-Ion Battery 1x Battery Charger 1x Assembly Tools 1x Frame Bag 2x Pedals 1x Handle Bars Shipped Installed On Bike 1x English User Manual (including Display Manual)