Rear chain sprocket size

Discussion in 'Whizzer Motorized Bicycles' started by Whizzer 58, Mar 18, 2010.

  1. Whizzer 58

    Whizzer 58 Member

    Hello everyone, this is the first good day around here to work on my '05-NE5, temp is 68*. Last year my rear brake sprocket axle assembly broke, so I ordered a new one from Whizzer, I put it on and went to install the wheel and it would not fit.

    The tire rubbed the inside of the fender and would not line up properly, I sat down and looked at it from every angle and then it hit me, the rear chain sprocket was too big. I measured the new one and it was 3" O.D and the old one was 2 3/4".

    Put the old one on and everything works the way it should and lines up properly. I just thought I would pass this along to make sure you use the right sprocket size and not trust the one sent to you and not waste a good hour of your life..

    Whizzer 58

  2. whizzer48

    whizzer48 Member

    If I read it right the rear drive sprocket is too big. When try to get mine belt/chain adj right on mine 48 I add or remove link to put in half link in to the chain so it match. I try the full link and it was way too much and need the half link to get it.
    Last edited: Mar 18, 2010