It's high quality E-Bike parts including wheel, twist grip throttle, brake grip, PAS, brushless hub motor, motor controller, lithium battery pack with BMS, charger. 36V/500W Q-128SX Motor E-Bike Kit Packing List: 1. A 16" 28" wheel with a double wall Aluminum Rim, 36pcs stainless steel spokes and copper nipple. 2. A Thumb Twist Grip Throttle. 3. A Q-128SXCute hub motor. 4. A 36V/8Ah battery pack with BMS and 2Amps charger. 5. A pair of Brake Grip. 6. A PAS. 7. A 500W specified controller.