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· Trailbuck
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Discussion Starter · #1 ·
I’m going to replace my alloy (aluminum) FSA crank bolts with cromoly crank bolts because they keep backing out.

In FSA’s service instructions it states “self-extracting crank bolts must never be used with ISIS spindles –this will void the warranty”. I was wondering what the reason is behind this?

Also, what is the main difference, reason, advantage and/or disadvantage between capless crank bolts and self-extracting crank bolts? (Other than the obvious dust-cap.)

Thanks for any information.
 
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