This kit comes with everything you need to convert your bicycle to an E-bike EXCEPT rim, battery and charger. Here's the packing list.4.2 x Power cut-off Brake lever / Sensor. 5.1 x Thumb Throttle /Twist Throttle. In diameter(if not, enlarge it). When you choose set with display.
When you choose set without display. Thumb throttle with on/off switch. Twist throttle with on/off power lock.