MOTOR ,BATTERY CAPACITY &CONTROLLERMotor: 1500W brushless motor, strong power, top speed up to 25mphBattery: 48V15AH removable lithium battery Samsung, convenient to charge, work 25kmat least on full charge.Controller:48V 30A Intelligent Controller Built In.TIRE ,CHARGER &DISPLAYTire:26x4.0 inch Fat Tire.It can adapt to snow, sand and other complex topography.Charger:110-220V.It takes 4-6 Hours to fully charge the battery.Recharge regularly to extend the life of battery.display:Color-LCD.You can set the wheel diameter, speed, backlight, mileage unit, riding mode, PAS gear.LED screen displays battery power, speed, mileage, gear, wattage.RIDING MODERiding mode:Pedal Mode / Boost Mode / Power ModePlease NoteTop Speed Test conducted with a 165 lbs (75 kg) rider going on a flat and dry road surface with no headwind at maximum tire pressure.Many other factors will affect range especially if riding at Top Speed and Climbing Steep Road or Trail. This Ebike is not recommended for riders under the age of 16. Given the high speed that this Ebike can travel, wearing a helmet is highly recommended.