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  1. #1
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    Stuck Chainring bolt...to drill or not to drill?

    I stripped a torx bolt on my slx crankset while switching from a 3x to 1x setup. I was able to get 3 of the 4 bolts out but the last is a bugger. I have tried adding WD-40 to the threads and using a fresh hex wrench to no avail. I am thinking that I will have to drill out the bolt. I have never done this before. Would someone provide there two sense on how to do this. Can you recommend a drill bit? I am assuming the bolts are alloy given how easily they rounded out.

  2. #2
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    They are alloy. Before pulling out the drill though, try the next size up torx bit. Tap it in gently with a hammer - to get it wedged in there good and proper. Then see if that will come out. If not, drill.

    If you are not confident drilling it, take it to your LBS. They should be able to do it for beer.

  3. #3
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    Stuck Chainring bolt...to drill or not to drill?

    Drilling sucks and takes too long. Use a cut-off wheel with a dremel. Zip
    99% of the problems and questions posted here would be answered if people actually walked into a bicycle shop and asked

  4. #4
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    Use a larger EZ-out chucked into an impact wrench. Guarantee it'll come out. You can use it like you are supposed to, but expect to smash knuckles on the chainring when using the nut wrench.

    For that matter, use an impact wrench to remove chainring bolts, period. Nothing easier...just make sure the bit is seated in the bolt before you start it up.

    You can drill it out, if you'd like, though. Another option is to grind the head off of one side and give it a whack to remove it.

  5. #5
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    Thanks...the next size up worked really well! surprisingly easy.

  6. #6
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    Quote Originally Posted by Shalom View Post
    If you are not confident drilling it, take it to your LBS. They should be able to do it for beer.

    Cash would be better, the shop can't pay rent with beer. Beer is always a good tip though, or a bribe to cut your bike ahead of the repair line!


    An Easy out might do the trick.

  7. #7
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    True, but in my experience, beer is appreciated for small and relatively easy jobs like that. And it tends to encourage a lasting relationship

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