Loose shimano cassette. Please help.
Today I put on an 11-23 Ultegra cassette onto a Mavic Kysrium Elite wheel. I used the spacer that came with the wheel and then put on the cassette. I tightened the lock-ring fully, but the cassette still had some play (i.e., it moved left and right 1 or 2 degrees). In addition, when I put on the cassette it never made the customary zipper sound when I tightened the lock ring.
To trouble shoot the problem I took off the 11-23 and put on the 12-25 that I had been using (again, I used the same spacer that came with the wheel) before and it went on, tightened, made the customary zipper sound, and had no play.
So finally to my question, do you have any tips on what I can do to get the 11-23 to work like it is supposed to?
Thank you in advance for any help.