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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 07-17-14, 09:42 PM   #26
Glyndwr
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I know this reply is WAY late, but I wanted to put this information out there for anyone that might need it.

I was attempting to convert a Campy 8 speed freehub to a 9 speed and became aware through this forum and others of the issues involved with the different arrangement of splines on the newer freehubs. I didn't want to attempt the complicated rebuilds some brave folks suggested. After thinking about it a while, I came up with an idea to add a single 8 speed cog of 16t to my 13-14-15-17-19-21-23-26 cassette, and then use 9 speed spacers in between to reduce the width appropriately. All went fine until I found that the last cog sits almost flush with the locknut on the end of the axle. This next step isn't perfect, but works like a charm - I removed the lock nut and slipped a very thin washer/spacer (1 mm) behind it. I then fit the wheel onto the Bianchi I am restoring to test it out and the cassette arrangement works perfectly with the 9 speed Campagnolo derailleurs I have on the bike!
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Old 01-26-15, 03:02 AM   #27
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Originally Posted by Drew Eckhardt View Post
Sometimes.

1997-1998 9 speed Record and Chorus freehubs interchange with their 8 speed predecessors. I installed a couple of Record Titanium 9 speed freehubs on my 1996 Chorus hubs after Campagnolo discontinued my favorite 8 speed cassette and before the New Old Stock supply dried up.

1997-1999 9 Speed Athena/Veloce interchange with their 8 speed counter parts as well as older Mirage hubs. An axle swap might be needed to swap for Record/Chorus - that went with the different freehub, along with a different drive side bearing although the 1996 hubs paired the Record bearing with the Athena axle + freehub. I've never tried that.

Everything below Daytona level in 2000 uses the cartridge bearing design previously used for 1997 and newer Mirage/Avanti. Those should interchange with each other. You might need a bearing change to use them with a higher level hub. I've never tried that combination either.

The 1999+ over-sized design definitely won't interchange. I have one of those and the bearing ID is much larger. You might be able to swap bearings and spacers to use a conventional axle, although the bearings were never intended to be replaceable and people do things like drilling a hole so they can compress the retaining ring.
Hi!
Dear friends,

I want to change my 8 speed Chorus freewheel, but i can't identify the model of my hubs so i can look for a 9 speed freewheel that is compatible.

I saw that old Chorus models have the freewheel from plastic, not from metal, as i do.

Can someone help me?



There are some photos with my rear hub.

Thanks!
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File Type: jpg 08012015010m.jpg (52.6 KB, 9 views)
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Old 01-26-15, 07:36 AM   #28
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Originally Posted by Pandy01 View Post
Hi!
Dear friends,

I want to change my 8 speed Chorus freewheel, but i can't identify the model of my hubs so i can look for a 9 speed freewheel that is compatible.

I saw that old Chorus models have the freewheel from plastic, not from metal, as i do.

Can someone help me?



There are some photos with my rear hub.

Thanks!
Those ARE 9/10/11 speed hubs.

The only plastic part I know of is the nut on the quick-release skewer... on some models.
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Old 01-26-15, 11:18 AM   #29
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Quote:
Originally Posted by Pandy01 View Post
Hi!
Dear friends,

I want to change my 8 speed Chorus freewheel, but i can't identify the model of my hubs so i can look for a 9 speed freewheel that is compatible.

I saw that old Chorus models have the freewheel from plastic, not from metal, as i do.

Can someone help me?



There are some photos with my rear hub.

Thanks!
1999-2006 Chorus with over-sized axle. 9/10/11 speed. You can tell it's 9/10/11 the deep splines with the stepped spline not present on 8 speed Record Titanium (regular 8 speed has shallow splines). The OS hub has a distinctive preload adjuster on the non-drive side and is noticeably chunkier than the 1998 and older design. 2007 OS hubs are black, Record only, and have a different adjuster.

If you want to run Shimano cassettes like the original thread poster current production Shimano splined Campagnolo/Fulcrum "over sized" freehubs will go on with some grinding, or you can drop in with a new axle FH-BO001.

Campagnolo 9/10/11 cassettes go right on. 8 speed cogs aren't officially compatible (the shallower splines made for harder steel freehub bodies can dent the softer aluminum) although the outer diameter matches and they fit. Campagnolo sold (sells?) spacers to put 8 of 9 cogs on.

Last edited by Drew Eckhardt; 01-27-15 at 10:34 PM.
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Old 01-27-15, 02:47 AM   #30
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Thanks a lot my friends!

I lived with the ideea that the hub is for 8-speed. I've tried to put 9-speed and the last one was half outside. I didn't realise, until today when i removed a little spacer, spacer that i've didn't see in the previous attempt.

For the moment, in this situation, i don't want to change from Campa to Shimano, as the author of the thread want. If i'm completely offtopic, please (moderators) move my posts and the discussion that i've made, into another topic.

Thanks and have a nice day!
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Old 01-27-15, 10:42 PM   #31
Drew Eckhardt
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Originally Posted by Pandy01 View Post
Thanks a lot my friends!

I lived with the ideea that the hub is for 8-speed. I've tried to put 9-speed and the last one was half outside. I didn't realise, until today when i removed a little spacer, spacer that i've didn't see in the previous attempt.

For the moment, in this situation, i don't want to change from Campa to Shimano, as the author of the thread want. If i'm completely offtopic, please (moderators) move my posts and the discussion that i've made, into another topic.

Thanks and have a nice day!
The cassette is supposed to hang somewhat off the end of the freehub so the lockring does not bottom.

There should be no spacer between the largest cog and freehub body, although I have vague memories of my eight speed hubs including one which I left off because it wasn't in the instructions for anything.

Loose cog 9 speed cassettes have a same-sized spacer between all the cogs except the first position and second position 12T cogs have a built-in spacer.



The long since discontinued Chorus/Record Mk2 cassettes have a slightly different arrangement

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