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Thread: crank question

  1. #1
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    crank question

    i'm sure this is a dumb question so i apologize in advance but i searched and couldnt really find an answer. why dont we use bmx style cranks on singlespeed mtb? wouldnt the ability to use the smaller chainrings offer more clearance?

  2. #2
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    weight penalty is a major reason i would think any way. also you are then getting into micro drive set up which wears very fast.
    stumpjumper 29 evo
    Jabberwocky
    Gt peace 9'r
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  3. #3
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    I have a set of Crupi Rhythm Pro's on my Bianchi right now. Very solid and stiff. A little wider then most MTB cranks and way over built.

    Tim

  4. #4
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    those look nice but arent they the same bcd as most mtb cranks? whats the smallest ring you can run? i was interested in the idea of being able to run a smaller ring like the bmx guys do. anyone else seen or done it? or have an opinion?

    i found a thread on pinkbike talking about this subject in case anyone else is interested
    Last edited by bgblue1978; 04-13-2010 at 07:38 PM.

  5. #5
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    Some people do.

    I think it's mainly due to the fact that mountain bikes are more comfortable with MTB gear as that's what they're familiar with.

    There's also a school of thought that says you should use bigger rings to get more chain wrap. You tend to exert a lot more force grinding up that last bit of a hill at less than walking pace than you ever do on a BMX.

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