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Discussion Starter · #1 ·
Hi All

Wonder if you more experienced guys (or girls) could help me out

I recently installed a new SR group, putting the 12-27 cassette onto a set of new 09 Mavic Cosmic carbone SL's. the new groupo seems to work well although I am confused about the following;

The hub came with a threaded locknut attached (rather cheap looking!!!) and a thin washer on the splines. I just took these off and slotted on the new cassette and fitted the campag locknut supplied. Seemed fine.

Should I have left the spacer (washer) on?

My only other previous experience was fitting an XTR cassette onto my MTB that had no washers.

Thanks in advance

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