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Dura-Ace 10sp cassette on a 9sp hub?(6 posts)

Dura-Ace 10sp cassette on a 9sp hub?ds5200
Jan 27, 2004 8:12 PM
Will this work? I did a search and can't find the answer. I'm looking to pick up a used set of wheels for the trainer and can find some D/A 9sp o/p pretty cheap. Currently running the new 10sp.

re: Dura-Ace 10sp cassette on a 9sp hub?torquecal
Jan 27, 2004 8:15 PM
it should work - shimano said that it's 9 spd hubs would accept 10 spd cassettes, but the new 10spd hubs wouldn't be backward compatable with 9 spd cassettes.

having said that, I haven't personally tried it yet.
Jan 27, 2004 8:28 PM
It's listed under the FAQ on the Shimano website. The cassette should come with a spacer that allows it to be used on 9-speed hub. The 10 speed cassette is actually narrower than a 9-speed.
Jan 27, 2004 8:49 PM
thanks guys-I knew someone had the info.
Maybe two spacers...teoteoteo
Jan 28, 2004 7:05 AM
I haven't checked out the Shimano site like C-40 but I just sold off a 10 speed DA kit. When I took the cassette off I noticed 2 spacers and not one as Shimano mentions.One spacer was thicker and the other very thin so I think the cassette must not have tightened down enough using just the provided Shimano spacer. Since the kit I sold was OEM from a complete bike I wasn't around when it was installed.

My cassette came of some Mavic Ksyrium Elites if this helps any. Also the spacers go on first, then the cassette....
one mavic, one shimano spacer...C-40
Jan 28, 2004 7:24 AM
When used with a Mavic M10 cassette body, two spacers are used; one Mavic spacer to reduce the longer M10 cassette body to a normal shimano length and a shimano spacer to reduce the length for the 10 speed cassette.