Author Topic: Wheel and frame rubbing  (Read 8678 times)

Offline scott

  • Confirmed
  • New Member
  • *
  • Posts: 20
Wheel and frame rubbing
« on: October 08, 2009, 02:08:17 AM »
Got  the rear wheel (48vGM) , installed today ,it is totally lock up….?
I’m trying to use a 36v GM controller with a 48 v GM  throttle and 48v motor.
Got the horn working “nothing else” Got any ideas?

Offline Bikemad

  • Global Moderator
  • Professor
  • PhD. Magic
  • ******
  • Posts: 5,553
Re: Rear wheel not turning
« Reply #1 on: October 08, 2009, 09:41:22 AM »
Got  the rear wheel (48vGM) , installed today ,it is totally lock up….?
I’m trying to use a 36v GM controller with a 48 v GM  throttle and 48v motor.
Got the horn working “nothing else” Got any ideas?

Scott,

Did the wheel turn OK before you connected any wires? If you're not sure, try disconnecting the three main motor wires and see if it then turns OK by hand.

If it's tight to turn with the motor wires unplugged, make sure it's not touching the frame or binding against the brakes etc.
If you haven't fitted the spacer tube on the freewheel side it could be locked up solid against the freewheel.
GM state that this hubmotor will take up to a six speed freewheel, more than six sprockets may cause a problem.
I would make sure there is clearance between the end of the freewheel and the dropouts.
If you think the freewheel may be the problem, slacken the nut which secures the axle on the freewheel side and see if the wheel turns, just to confirm it.

Alan
 
« Last Edit: October 08, 2009, 08:12:22 PM by Bikemad »

Offline scott

  • Confirmed
  • New Member
  • *
  • Posts: 20
Wheel and frame rubbing
« Reply #2 on: October 08, 2009, 07:22:39 PM »
Got  the rear wheel (48vGM) , installed today ,it is totally lock up(left hand rubber against the frame) .The wheel is to far off set. I`m using a 6 speed gear. Will a 3 speed gear give me more room between the tire and the frame?

Thanks Scott

Offline Bikemad

  • Global Moderator
  • Professor
  • PhD. Magic
  • ******
  • Posts: 5,553
Re: Wheel and frame rubbing
« Reply #3 on: October 08, 2009, 07:59:48 PM »
Scott,

Please read this post for more information regarding your wheel problem.

A 3 speed gear will only give more room between the tire and the frame if you use a shorter spacer.

Alan