Yet another chain thread.

Discussion in 'Motorized Bicycle General Discussion' started by Finfan, Sep 28, 2008.

  1. Finfan

    Finfan New Member

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    My master link failed today. Naturally being a new first build I don't have any replacements yet although they are now on order. The problem I am seeing with the chain they use is that it is too heavy for bike shops to carry and too light for the motorcycle shops. I would like to pose a question to all of you machinist/engine builder types out there. Short of a total redesign of the engine would it be possible/feasible to convert over to a 420 chain? That seems to be the lightest that the local motorcycle shops carry. I suspect that it wouldn't be cost effective but the frustration factor is really high right now so I am looking for options. Thanks! :(
     
  2. Dave31

    Dave31 Moderator
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    Belt Bearing & Chain on 22nd & I-10 will have the #41 and chain link's. I have been all over Tucson and they are the only ones in town that I have found the #41.

    Be sure to put your link on correctly

    [​IMG]
     
  3. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    #415 BMX chain is the same as #41 chain.
     
  4. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    Is your masterlink facing the right way?
     
  5. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    Are you sure?
     
  6. paul

    paul Active Member

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  7. Finfan

    Finfan New Member

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    I had set mine up so the open end of the keeper was facing backwards when the link was on top. I thought I had read that was the way to do it. Was I wrong?

    Sadly Belt Bearing and Chain has hours that prevent me from ever getting there.
     
    #7 Finfan, Sep 29, 2008
    Last edited: Sep 29, 2008
  8. misteright1_99

    misteright1_99 New Member

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    #41 and #415 are close to the same. Same pitch but the width for the #41 is 1/4" wide, and the #415 slightly narrower at 3/16" wide.
    I think the masterlink should put put on so that the closed end is facing the direction the chain rotates, so it cannot be driven off.
     
    #8 misteright1_99, Sep 29, 2008
    Last edited: Sep 29, 2008
  9. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Yes, you are correct. Both will work on our bikes, some have interchanged links between them. Don't do it if you are not a qualified shade tree cobbler.
     
  10. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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  11. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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    You are correct. Opening facing rear when on top.

    I was asking - maybe he posted the picture as what NOT to do.
     
  12. misteright1_99

    misteright1_99 New Member

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