Bicycle Mechanics - Cassette play

I have a Ultegra 10spd cassette and cassette freehub body (Easton Vista wheels) that has some play in it. I can grab the freehub body with two fingers and it wiggles slightly. When I tighten the lockring down, there is still that same amount of play.

Is this serious?

Is there an easy way to tighten the freehub body?

If you're sure that all the necessary spacers are present, and that the cassette lockring has been tightened according to specifications, and the cassette still feels loose, then you might want to check that the freehub has been tightened correctly (requires removing the axle and bearings to get at the 10mm allen nut).

I had what sounds like a similar problem with a Shimano Ultegra freehub which I had replaced; no matter how I tried adjusting them, I could never get the bearings to feel "just right", and the cassette cluster also felt loose and had a tiny amount of play. I eventually found that the freehub was only hand-tight.

Good luck -

- Wil

You need to put a spacer behind the cassette. Shimanos manufacturing tolerances are not the best. Roger

Well, figured it out. Took the cassette off, to make sure that I did put the washer on. It was on so I was going to start to take apart the hub, cassette body so I could tighten it down and found that the hub locknuts (not sure what they are actually called) were only finger tight. After getting them a lot tighter... all is ok.

Shimanos manufacturing tolerances are not the best.
They aren't? My experience is that their components are very accurately made.