Cassette spacers

[besso]

My mavic carbone slr's came with a spacer for between the cassette and hub and my dura ace cassette also comes with a spacer. Do I use both of these spacers? It will leave quite a gap between the hub and cassette.

I'm also wondering how tight should the cassette lockring be?

Thanks

[jmaccelari]

Normally for Shimano you just use the one spacer that comes with the cassette. I've never seen two...

 

Again for Shimano, the lockring says it should be torqued to 40Nm.

[Johan Bornman]

I recently came across a Mavic wheel that wouldn't work with just one spacer.

 

It is easy to see. If you tighten the lockring and the sprockets still rattle around, you need a spacer.

 

IIRC, some Shimano cassettes come with what appears to be a spacer but it actually isn't. It is a steel washer. If you look at the back of the cassette, you'll see the aluminium spider is recessed and the insertion of the spacer/washer makes it flush. I assume this washer is to prevent fretting damage between the alu spider and steel freehub body.

 

Using these cassettes on freehubs that require a spacer will clearly require 2 "spacers".

[Tankman]

I have a 10 speed specific freebody that can not take a spacer, it just wont fit over the freebody ... I know this doesnt help you but I thought it was interesting