The package includes everything you need to convert your bike except the batteries:
1. Motor-reduction assembly
2. Integrated programmable Controller (36-72V)
3. Torque-sensing Bottom bracket and freewheel crankset
4. Waterproof wire harness
5. Spacer for 68mm/73mm bottom bracket (For 68/73/83mm version)
6. Round color display (36-72V) For 36-72V stock controller)
7. Thumb Throttle/ Half Twist Throttle
8. User manual
9. 219H Golden KMC Chain and chainrings
