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  1. #1
    mtbr member
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    Nov 2007
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    Help me with chainring bolts

    I'm converting an old 5 arm, XT triple crankset (M-737) for single speed use. I've stripped off the chainrings and plan to use a new non-ramped/pinned 44 tooth chainring. While I can put the new chainring on the outside or inside of the spider, I expect I'll place it in the outer position. I don't have the new chainring yet,but I was playing around a bit this afternoon. With two rings mounted to the spider (the original configuration,) the chainring bolt seems to engage about 1/3 of the threads before things get pretty snug. With just one ring in place, I need to use a screw driver to hold the nut in place to fully tighten the bolt. Is that okay or do I need to find slightly shorter chainring bolts?

  2. #2
    Dinner for wolves
    Reputation: buddhak's Avatar
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    Jan 2006
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    1,566
    As long as the female chainring bolt's edge doesn't protrude past the spider + chainring holes, then you are good to go. More threads engaged, the merrier.
    Responds to gravity

  3. #3
    mtbr member
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    I use a washer with the original chainring bolts.

  4. #4
    mtbr member
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    I picked up a set of Origin8 single speed bolts off of Amazon for a decent price.

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