Originally Posted by
capwater
Only spacer you're gonna need on a 9-speed is if the wheel is a Mavic. There is only one way to put on a cassette since the splines are different. 9 speed SRAM has the cogs bolted together. Forget the grease, cassette doesn't move on the spline.
This is one of the reasons I asked my question - I had this vague memory of reading somewhere that some hubs required a special spacer or such. My new wheel/hub is Reynolds, so that shouldn't be an issue.
Why is Mavic like that? I always thought the various freehub bodies (in this case Shimano 9/10) were generic, regardless of the hub they were fitted on. Why and how is Mavic different?
For what it's worth, my old wheel is Mavic (Aksium, a nice wheel by the way), but since the cassette is staying on there, it isn't an issue for me.
Thanks again to everyone for the comments.