Conversion kits 

24V-36V 150W- 350W type front or rear motor

Double-wall alloy rims spoke (2.6mm spokes spoked by park tool)

24-36V 14A-17A good quality controller

Throttle

1: 1PAS

E-brake (power off the electricity)

Speed 25km/h. Max 33km/h

LED display show the battery capacity