Features:1.This is an E-bike kit, made of good quality materials.2.High power motor, 48V 1000W, endurance, make you fully enjoy the pleasure of cycling.3.Brake Levers cut off the power supply to the motor safely.4.High sensitivity, easy to install and operate, long service time.5.A complete conversion kit for E-bike, practical and wonderful. Specifications:Item type: Electric Motor Conversion KitMaterial: blendColor: blackPower: 1000WMaximum torque: 28N.MPower Assist System: 1:1Controller: 28ABrake handle: the five-starWaterproof grade: IP54 Throttle: thumb/brake throttle Wheel diameter: Approx. 26inWheel width: Approx. 4in Options: front drive(front drive is 135mm), rear drive(the rear drive is 170mm), rear drive flywheel(the rear drive is 190mm)Packing List:1 x Wheel1 x Controller1 x Brake Lever1 x Assist1 x Trigger Shifter2 x Shifters1 x Shifters Clip1 x Binding Post (Yellow Box)2 x Instruction6 x Ribbon1 x Film1 x Controller Bag