Rim: Double Wall Alloy. Power: 1000W / 750W/500W. Bike Type: Electric Bicycle Conversion Kit. Wheel type: Front Wheel. Motor Type: Brushless Gearless Hub Motor. Brake Type: Hand Brake. Features: Pedal Assist, 1000 Watt, Front Wheel, 48 Volt, can convert 2/3 wheeled bike into a electric bike. Frame Size: 24 in. Spokes: Steel, 12G x 2.6m. Wheel Axle: 175 x? 10mm. Max load capacity: 440 LBS. Net weight: 10.5kg. Net Weight: 22 LBS. Note: Battery and charger are not included in package. 1 x Brushless Gearless Motor Front Wheel. 1 x Intelligent Motor Controller. 1 x Pedal Assist Crank Sensor. 1 x Cable Ties & Plastic Coil. 1 x Pair of Handle Bars (included Twist Throttle). 1 x Controller Bag. 1 x Pair of Brake Handles. 1 x LCD Meter. The system requires a 48 Volt electrokinetic cell battery with a nominal capacity not less than 11.6Ah. Battery and charger are not included in package. Caution: For your Safety, Please turn off the battery before connecting the Controller!