These threaded multi-speed freewheels from SunRace are compatible with BionX Electric Bike Kits.
If your existing bike already has an ISO thread-on freewheel, you can use it with your BionX kit. If your bike has a 7-, 8-, or 9-speed freehub and cassette, purchase one of these freewheels appropriate for your bike.
(Call us if you need a thread-on freewheel with more or fewer speeds than the three listed here. We can special order one for you.)
Bionx Motor/Communication Cable Extension
Tektro Linear Pull Brake Lever Set for eBikes
BionX SL 350HT Electric Bike Conversion Kit