I have removed my chainring from my Bicycle, but I do not know how to remove the chainring bolts I have tried using an Allen key but I cannot move it.

Do I need a special tool?

Here is a photo enter image description here

enter image description here

Any Feedback is Helpful

  • 2
    Are you sure they're bolts, and not rivets? The grannie gear is definitely rivetted in place, to my eye.
    – Criggie
    Aug 23, 2021 at 10:19
  • 4
    The tool is called drill :) It's probably best to check that the the rivets are in standard position for replacement chainring before taking the thing apart.
    – ojs
    Aug 23, 2021 at 10:40

1 Answer 1


The rings are not replaceable. You can remove them with a drill if required. This type of chainset is very cheap and quite heavy. It would cost significantly more to replace the rings than to replace the whole chainset! The rings don't look so worn, perhaps you want to change ratios.

If you do buy a new chainset, if it is from a different manufacturer you will probably need a new bottom bracket with the correct spindle length, though not always. Have fun.

  • How would I go about drilling them out?
    – Confused
    Aug 24, 2021 at 9:49

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.