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freewheel hub conversion

Old 08-27-12, 11:59 PM
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freewheel hub conversion

I am upgrading the group on my Lemond and I was wondering if anyone can help me. I have ordered a set of shifters which are 10 speed as well as the rear & front derailleur. I have discovered my cassette is a 8speed Sora free hub (I think) and cant find a 10 speed replacement. Reading the forums I get the impression that I will have to replace the rear hub to be able to put on a 10 speed cassette, is there any other way or will I have to bite the bullet?

Thanks
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Old 08-28-12, 01:15 AM
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No, you don't need a new hub!

A 10-speed cassette will fit your hub just fine. There is a thin spacer in the cassette package, so look for the directions as to whether it should be used.

Even one of the 11t cassette sprockets will fit your hub, hyperglide-C compatible! Not that you would want an 11t necessarily.
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Old 08-28-12, 04:17 AM
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Originally Posted by dddd
There is a thin spacer in the cassette package, so look for the directions as to whether it should be used.
Never mind the directions, just see if it's necessary by trying the cassette on without it. If you can tighten the lockring without clamping down on the cogs, you need the spacer.
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Old 08-28-12, 07:04 AM
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Originally Posted by dddd
No, you don't need a new hub!

A 10-speed cassette will fit your hub just fine. There is a thin spacer in the cassette package, so look for the directions as to whether it should be used.
You certainly don't need a new hub as any 8-speed Shimano freehub will also accept a Shimano 10-speed cassette. AFAIK, all Shimano 8/9/10-speed freehubs require the 1 mm spacer behind a 10-speed cassette. Only the rare 10-speed only hubs can do without the spacer.
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Old 08-28-12, 07:31 AM
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Originally Posted by HillRider
You certainly don't need a new hub as any 8-speed Shimano freehub will also accept a Shimano 10-speed cassette. AFAIK, all Shimano 8/9/10-speed freehubs require the 1 mm spacer behind a 10-speed cassette. Only the rare 10-speed only hubs can do without the spacer.
Well, unless it's one of the first generation dura ace 10 speed cassettes, right? Or am I remembering those wrongly? Still, the odds of someone upgrading from 8 to 10 just now having one of those laying around is probably rather small.
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Old 08-28-12, 07:36 AM
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Originally Posted by himespau
Well, unless it's one of the first generation dura ace 10 speed cassettes, right? Or am I remembering those wrongly? Still, the odds of someone upgrading from 8 to 10 just now having one of those laying around is probably rather small.
The odds of it being a 10-speed only Dura Ace (7800) hub are zero since the OP said it was a Sora 8-speed hub.
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Old 08-28-12, 07:40 AM
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Originally Posted by HillRider
The odds of it being a 10-speed only Dura Ace (7800) hub are zero since the OP said it was a Sora 8-speed hub.
Oh, it was the hub that was weird not the cassette? I thought the cassettes were also odd and that there might be some of those cassettes still floating around. Still not likely though.
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Old 08-28-12, 08:19 AM
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I took the cassette off and noticed there isn't a free hub on my wheel. I have included some photos if someone could identify it for me and tell me what to order.

Thanks again
Attached Images
File Type: jpg
bottom.jpg (96.6 KB, 22 views)
File Type: jpg
off hub.jpg (94.4 KB, 17 views)
File Type: jpg
on hub.jpg (92.0 KB, 19 views)
File Type: jpg
top.jpg (86.2 KB, 16 views)

Last edited by lem0ndrider; 08-28-12 at 08:45 AM.
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Old 08-28-12, 09:09 AM
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You removed the freehub with the cassette. Put it all back together and remove just the cassette lock ring (will take a lock ring tool and a chain whip).
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Old 08-28-12, 09:57 AM
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Thanks, I was a bit worried there
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Old 08-28-12, 10:35 AM
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That doesn't look like any Shimano freehub body I've ever seen. I guess Trek (LeMond) used a proprietary hub, probably labeled "Bontrager". The cassette is indeed a Shimano but the hub isn't
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