10 Speed cassette issue (shimano)
Has any body else had this problem. My 10 speed cassette (ultegra) does not fit tightly on the cassette body. I am not meaning the 2mm spacer but the cassette body is actually smaller than the inner diameter of the cassette. This in turn allows play on the cassette body which has already damaged my aluminium cassette body on my zipp wheels.
When I place my 9spd cassette on all my wheels it is a nice snug fit. Where as the 10spd cassette seems like it is made for a larger diameter cassette body. Last time I placed my 9spd cassette on my zipps I had to sand down the gouges that the 10 spd cassette had caused through its movement to get it to fit on, this was when I became aware of the problem.
Any advice on whether this is a defective cassette or a known problem would be greatly appreciated.
It might have something to do with the free hub. My Ultegra 10 cassette fits nicely on my Ultegra-hubbed (6500) Open Pro wheels but not so tight on my American Classic 350's. I'm able to get the lockring tight enough that it doesn't move around (at least on the rides so far) but it's obviously not ideal. I'd like to hear if anyone else has experienced this too.
Good luck with getting this answered. I've asked and no one really seems to know why this fit is so sloppy in general. This is a high torque point with very little surface area on any one cog's teeth to carry it to the larger wheel diameter before the torque is applied to the ground via the wheel and tire. Much worse now is that 10 speed cassette hubs are generally aluminum now, not steel.