This is for you. Make sure this fits by entering your model number. 72v 2000W Rear Hub Motor (Rear Differential: 135mm) MTX33/39 Double Wall Alloy Rim 48-72V 45A 18pcs w/controller pack Multifunctional SW900 monitor w/7 speed cassette, our kit is set to 72V as standard, but our controls The monitor voltage is 48- 72V, you can also modify the voltage on the monitor according to your battery voltage
