26" Mountain Ebike, Adult Electric Bike with up to 20MPH, 48V 7.8Ah Battery 350W Peak 1000W Electric Bicycle, Unisex Powerful Electric Drive System: This adult ebike adopts a 48V 350W hub paired with a 48V 7.8Ah 18650 lithium battery (39 cells total), full charge takes only 5-6 hours; dual Hall sensors & thumb throttle ensure smooth power output for the electric bicycle. Professional 21-Speed Drivetrain: The electric mountain bike comes with a 24-34-42T triple chainring + 7-speed 14-28T freewheel, TX30 shifters and TZ30 rear derailleur, flexible speed adjustment for uphill, downhill and flat road riding scenarios. Safe & Stable Braking Configuration: Built with 160mm mechanical disc brake rotors and full aluminum cut-off brake levers, this ebike cuts power automatically while braking, greatly lowering riding risks for outdoor use. Our Li-ion battery pack has been tested to ANSI/CAN/UL/ULC 2271:2018 by TUV Rheinland. Our complete e-bike electrical system has been tested and certified to ANSI/CAN/UL 2549:2022A by TUV Rheinland. Ebike Key Specifications: Power: 48V 350W Brushless Geared Hub Battery: 48V 7.8Ah Removable Lithium-ion (18650 Cells) Max Speed: up to 20MPH Charging Time: 5-6 Hours Suspension: 60mm Travel Front Fork with Lockout Gears: 21-Speed (3 Front / 7 Rear) Brakes: Mechanical Disc Brakes (160mm Rotors) Tires: 26" x 2.1" Equipped with: Speedometer, e-Bike Tuner Frame: Steel Mountain Bike Frame Controls: 5-Level PAS, Thumb Throttle, LCD Display Features: LED Headlight, IPX4 Water Resistance, Kickstand Max Load: 350 lbs Age Range: Over 16 years old Rider Height: 5'3" - 6'3" Bike Weight: 59.5 lbs Colors: Gray, Orange, Light Blue, Light Green, Red, White, Black, Dark Purple