Do I need to change my Crank If I put a 2 stroke on my mountain bike?

Discussion in '2-Stroke Engines' started by StrontiumEthics, Jul 3, 2008.

  1. StrontiumEthics

    StrontiumEthics Motored Bikes Sponsor

    Do I need to change my Crank If I put a 2 stroke on my mountain bike? Like do I need the wider cranks or can I still us my Truvativ Hussenfelt? Get back to me ASAP! Thanks


    Strontium E.
     

  2. No, the Happy Time engines will fit between the stock crank of most bicycles.....
     
  3. Most of the two stroke Kits Motors Are About 4 3/4 Wide.

    Cheers

    Bob
     
  4. crazeehorse

    crazeehorse Member

    measure from the center of your seat post tube , out to the inside edge of you crank arms, on each side. you need about 2-5/8" on each side to clear the 70 cc engine.
     
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