|Are all chorus 9 speed hubs 10 speed compatible?||kilimanjaro|
Mar 22, 2003 11:00 PM
|The reason I ask is because I say a 9 spd chorus hub for sale on E-bay and the owner is not sure if it is a 97 or 98. I was not sure when Campy went from 8 to 9 speed, so wanted to make sure that the hub is not an 8 spd hub running 9 spd casettes.
|Campy hubs 101||DMoore|
Mar 23, 2003 4:05 PM
|Campy 9 or 10 speed cassettes won't fit on a Campy 8 speed hub. When Campy went from 8 to 9 speed they lengthened (widened?) the hub body. As a result, 9 and 10 speed fit interchangeably on the 9/10 speed longer/wider hub body. If the seller has a Campy 9 speed cassette on the hub, a Campy 10 speed cassette will fit.
Shimano seems to be about to face the same problem. Their original DA freehub body was designed for 8 cogs. When they went to 9 speed, they managed to still fit them on. But now they're out of space, and word is that the new DA 10 speed system won't fit on the older hubs.
|One more tidbit||DMoore|
Mar 23, 2003 4:07 PM
|All Campy models (Record/Chorus/Daytona/Mirage/whatever) use the same cassette dimensions, so they are all fully interchangeable. Chorus cogs fit on Record hubs, Record cogs fit on Chorus hubs, etc etc.|
|Difference between Campy 8 and 9/10 (not that it matters)||TJeanloz|
Mar 24, 2003 8:53 AM
|The Campy 8 freehub body is not only too short to carry 9 or 10 cogs, it also has an entirely different spline pattern. Even if the 8 speed freehub was long enough, trying to put 9/10 cogs on would be like trying to put a square peg in a round hole.
The good news, for those who still have Campy8, is that almost all Campy8 freehubs can be replaced with 9/10 freehubs relatively affordably.
|Difference between Campy 8 and 9/10 (not that it matters)||Fred the Cross Poser|
Mar 25, 2003 9:37 AM
|Not so fast:
You can take an 8 speed cassette, respace it with a Wheels Manufacturing spacer kit, add a ninth cog, and it will fit on an 8 speed hub. You can tell those cassettes because they have the distinctive green spacers.
You can also then take that pseudo "9 speed" cassette and mount it on a 9/10 speed hub. Up until this year, this is how I have been running my Bianchi Eros. However, most of the new hubs are soft aluminum and the individual cogs can notch them pretty severely.
Tjeanloz may have it backwards, I can't quite remember - 9 speed cogs have a different cut pattern than 8 speed and won't fit on an 8 speed hub. But 8 speed cogs definitely fit on a 9 speed hub.
Read more about it at WWW.Branfordbike.com
I hope this helps!
|I believe you are correct (nm)||TJeanloz|
Mar 25, 2003 1:03 PM