I bought a China motor

Discussion in 'Mounting Techniques for Bicycle Motors' started by Inf3ct3d89, Jun 13, 2018.

  1. Inf3ct3d89

    Inf3ct3d89 New Member

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    I beleve it has a 40mm piston, can I change the barrel and piston to 47 without changing the crank?
     
  2. crassius

    crassius Well-Known Member

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    won't fit into the cases
     
  3. Inf3ct3d89

    Inf3ct3d89 New Member

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    The case is where the arm moving the piston is at right
     
  4. Inf3ct3d89

    Inf3ct3d89 New Member

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    Its a 47 NVM
     
  5. crassius

    crassius Well-Known Member

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    cases for 40mm piston have a hole on top for cylinder to go in - cylinder for 47mm piston are also 47mm wide on inside, that makes the cylinder too wide to go into the hole in cases
     

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