Motorized Big Mo

Discussion in 'Photos & Bicycle Builds' started by Thrumpton VC, Dec 14, 2013.

  1. Thrumpton VC

    Thrumpton VC New Member

    Motorized Big Mo- work in progress
     

    Attached Files:


  2. Barry

    Barry Member

    Hey VC,
    I'm building one of these as well using a Grubee 66cc and am having some left pedal crank to engine case clearance. You have the same issue?
    Tanks
    Barry
     
  3. Thrumpton VC

    Thrumpton VC New Member

    Hey Barry
    Its tight as mate... you can just about get a rizzla paper between the two. I used the angle grinder (lightly ) on the left crank arm and just spent lots of time lining the engine up. Hope this helps.. will be posting more pics as the bike is pretty much up and running. Hope this helps
     
  4. Bzura

    Bzura Member

    I built one for a guy over the summer, and I remember the left crank being so very close (Rizla paper made me laugh! Haha). I used a steel plate chopper mount from Dax, and I think I had to space out the rear sprocket with another rubber donut thingy. I don't remember exactly though.

    It really bothered me that the guy didn't want to upgrade to a long running exhaust & I had to use the stock one. But it still turned out really nice. Quite a solid bike too!
     

    Attached Files:

  5. Bzura

    Bzura Member

    I forgot about the chain. I had to turn the chain tensioner upside down and add a link or two so it wouldn't rub on the frame. I wasn't sure what to do about that at first, and it was the best solution I came up with.
     
  6. Thrumpton VC

    Thrumpton VC New Member

    Chain Tensioner

    I had to do the same with mine.... I am on my second as the first disintergrated from overtightening it..
     
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