BBSHD 52V 1000W Mid-Drive Motor: 1 pc. LCD Display + Operation Button: 1 pc. Thumb Throttle: 1 pc. Waterproof Quick Release Wires: 1 pc. Speed Detecting Sensor + Magnet: 1 pc. 46T Chain wheel : 1 pc. Left Crank + Right Crank: each 1 pc. Fixing Plate: 1 pc. M510 Nuts: 5 pcs. M612 Nuts: 2 pcs. M33 Nuts: 2 pcs. ST 3.9 Nuts: 5 pcs.