i heard somewhere that power assist kits use the disc brakes somehow.
i am assuming it requires replacing the disc rotor with a sprocket
does anyone have any one know of any sites that sell hubs that can take a 72 tooth #35 chain sprocket?
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You might be able to drill holes and bolt it right to the hub motor, like I've seen done with disk rotors on othter posts, but why, if you have a hub motor allready. I must be missing something again. The rear mounted hub motors come ready to recieve gears but I don't know about how it's done. I assume it's just like on a regular bike.
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36 volt sla schwinn beach cruiser
36 volt lifepo4 mongoose mtb
24 volt sla + nicad EV Global
Go here, and scroll down to the last couple of pictures at the bottom:
http://visforvoltage.org/forum/2082-what-about-trailer%3F
It was very cheap and easy. You could make it look nice if you wanted, I like the "hacker" look myself.
"Cyclone" sells a double sprocket with a freewheel. It replaces the stock sprocket, and allows the motor to use the rear gears without you pedalling, or for you to pedal without the motor causing drag.
that's well and fine if i have a in hub motor.
i am using a kollmorgen scooter/bike motor