Chainring bolt compatibility

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vonbonbon
Posts: 33
Joined: Wed Nov 21, 2012 08:28 am

Chainring bolt compatibility

Postby vonbonbon » Mon Jan 28, 2013 17:53 pm

My mechanic skills are almost nil, so sorry for what may be a really daft question....

My current chainring (FC-M442) takes a M8x8.5 bolt, I want to replace this with a M770 chainring which takes a M8x9.1 bolt. Will this work?

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nicklouse
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Joined: Thu Mar 20, 2003 12:14 pm

Re: Chainring bolt compatibility

Postby nicklouse » Mon Jan 28, 2013 17:56 pm

they will fit but not ideal as the 8.5 and the 9.1 are the length of the shoulder but 0.5mm should not cause any issues.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
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vonbonbon
Posts: 33
Joined: Wed Nov 21, 2012 08:28 am

Re: Chainring bolt compatibility

Postby vonbonbon » Mon Jan 28, 2013 17:58 pm

Wow, speedy reply.

One more question, what is shoulder? Is it the unthreaded but under the head?


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