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Anybody else have problems with the MegaExo style FSA chainsets coming loose? I've got the SLK carbon on my best road bike and every 100 miles or so I have to tighten the crankbolt back up. I've tried threadlock which helps but it still comes loose over time. Any suggestions?

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cat1commuter [1421 posts] 6 years ago
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I had the same problem on a Truvativ GXP MTB crankset. I think the interface is a similar piece of engineering. I have a nasty feeling that once the interface splines get worn by pedalling it when it is loose, then it never goes back together properly. I feel your pain!

I fixed it by replacing the crankset with a Shimano one.

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stuke [335 posts] 6 years ago
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Just the reply I needed, I now have proof to convince the missus I need a new Campag Corus chainset to match the rest of the groupset!! happy days  1