freewheel for 11 mm (7/16") shaft

GoldenMotor.com

jdcburg

New Member
Jul 9, 2009
150
0
0
massachusetts
Hi folks - I've been working with Jim Welch at SickBikeParts to adapt their gas motor kit to a GT I-drive mtb that I intend to power with a 350W Unite 1016Z3. I've been looking for a freewheel sprocket or even just a freewheel for the output shaft of the Unite. It's a 11 mm (7/16") shaft with a 4x2 mm key. Jim suggested a BMX freewheel and machining an adapter but I'm wondering if anyone knows of anything off the shelf. I've checked the usual suspects - TNC, ElectricScooterParts, Monster and AllElectronics and I didn't see anything that would work. Thanks - jd
 

deacon

minor bike philosopher
Jan 15, 2008
8,114
9
0
north carolina
Did you see the 600 watt motor with the freewheel on the end of the drive shaft. All electronics had them and I had bought one previously off ebay. Im not sure it's free wheel but it won't turn backwards I know that for sure. It free wheels when you reverse the leads.
 

jdcburg

New Member
Jul 9, 2009
150
0
0
massachusetts
Hi Deacon. I don't need a new motor, I just want to put a freewheel on my existing motor. AllElectronics has freewheels but they are the wrong size. Did you try reversing the sprocket when you reversed the leads? That should make it catch in the right direction - jd