Shift kit idea

Discussion in 'Frame Mounted Engines' started by pdxrhett, Jun 17, 2009.

  1. pdxrhett

    pdxrhett Member

    Well, my idea is to saw off the pedals, install a sprocket on the left side of the pedals (that side usually unscrews w/ a 3-piece crank), then you would have, depending on the bike, 5-27 speeds. If I did this with my current bike I would have 27 speeds! :D. I am going to buy another bike eventually and try this idea out. Anyone see any problems with it (in my mind I am picturing the sprocket actually spinning the right way. it will right?)

  2. NiteSpy

    NiteSpy New Member

    yup that would work using your bottom bracket to house a jackshaft. Are you trying to ride it on the street? Cuz without pedals you might have some troubles.
  3. Happy Valley

    Happy Valley Active Member

    Search scooterguy and the evolution of the scooterguy bike.
  4. pdxrhett

    pdxrhett Member

    LOL. That's exactly what I keep telling people :D. He has some amazing mounts going on right now. Coming out with a new bike (won't post pics tho. not my bike).
  5. pdxrhett

    pdxrhett Member

    Sorry for double post. I'm tired.

    In Portland, at 49cc, nothing is required, by law (I keep letters signed in my pocket). 50cc however you need a moped license. Also, pedals aren't required ever. I love portland
  6. kallsop

    kallsop Member

    In principle, that appears to be a way to get a "free" jackshaft transfer from left to right side of the bike. I think it would need an extended drive shaft and repositioned clutch, which is a lot of work, or a transfer gear between engine and crank which is not too far off having a separate jackshaft. If I had a machine shop I'd investigate it further.