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Campy hubs, cassettes & splines compatibilty(6 posts)

Campy hubs, cassettes & splines compatibiltymhester
Feb 24, 2003 4:29 PM
With a new hubset designed for Campy 9-10, can I use a Campy 8sp cassette with a spacer? LBS says that I'd have to get a 9sp cassette, remove one of the cogs and use a spacer. Someone else said the splines for the 8 sp cassette won't fit on the new 9-10 hubset. Others have indicated the 8sp w/ spacer works fine. Getting different stories. Anyone have direct experience with this?
re: Campy hubs, cassettes & splines compatibiltyRusty Coggs
Feb 24, 2003 5:19 PM
Pretty sure 8 speed splnes are different.
re: Campy hubs, cassettes & splines compatibiltyibhim
Feb 24, 2003 5:39 PM
Campy addresses this in their Q&A section and the answer is "depends". Some of it appears to conflict, so it is very application specific.

here is the link.

Be sure to check each subject heading - hubs, sprocket, rear deraileur etc.
8 & 9 /10 are different except..........MR_GRUMPY
Feb 24, 2003 6:41 PM
8's have shallow splines for steel cogs. 9/10's have deep splines for Ti cogs or aluminum carriers. There were a few 8 speed hubs that were made with deep splines for Ti. cogsets. Those few might work with 9/10's. If you put steel cogs on a 9/10 aluminum freehub you have a fair chance of screwing up the freehub. I have a friend who did it, and it is working so far. It does chew up the freehub a little. You should check to see if some of the cheaper Campy hubs have a steel freehub body. It should work OK on those without much risk.
Can't use steel cogs on alloy body? Don't tell Campy!Kerry
Feb 25, 2003 5:20 PM
All cogs in Chorus and lower groups are steel, and they go on Al hub bodies. Original 98 Record 6/3 9S had 6 steel cogs. I've used almost exclusively steel cogs on a Campy Al body for over 40K miles with no damage to the body. If you run proper torque when putting the cogs on, you won't have a problem.
8 speed steel cogs on a Al body can cause problems..MR_GRUMPY
Feb 25, 2003 7:30 PM
because the 8 speed cog spline is not as deep.