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.
     

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  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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