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10 speed cassette on FH-1055 126mm - why did I think this wouldn't work?

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10 speed cassette on FH-1055 126mm - why did I think this wouldn't work?

Old 09-18-21, 01:04 PM
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10 speed cassette on FH-1055 126mm - why did I think this wouldn't work?

For some reason I had it in my head that I couldn't run a 10 speed cassette on the Shimano 126mm spaced rear freehubs. Is there some issue with these because the cassette seems to fit just fine?

I was getting ready to list the 7 speed 126mm wheels that came on my softride but on a whim tried fitting a 10 speed cassette. Went on just fine. So this should mean I can through a 10 speed cassette on the old Schwinn 684 I'm getting ready to refurbish. For some reason I've been thinking I was stuck at 7. That bike has DT shifters but now I just need to dig in my stash and see what STI shifters I have available. I guess I can go 8,9, or 10 according to whatever shifters are hiding in the bin.

Good news for the next owner I guess. I'm going to pass this one on now that I have it back from my son but wanted to update it best I can to make it more enjoyable for the new owner.

Anyway, just me ramblings.....not sure why I didn't think I could do this.
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Old 09-18-21, 01:31 PM
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We've been here before. You might need to install a spacer with some combinations, but it should work.

10-speeds on a 126mm hub SUCCESS
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Old 09-18-21, 01:43 PM
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You might tickle your DS spokes with the RD in the big cog without the 1mm spacer.
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Old 09-18-21, 02:00 PM
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Originally Posted by bargainguy View Post
We've been here before. You might need to install a spacer with some combinations, but it should work.

10-speeds on a 126mm hub SUCCESS
That's the one I was looking for. I remembered some kind of discussion.
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Old 09-18-21, 02:55 PM
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I think it's normal to think a 10-speed cassette wouldn't work on a 7-speed hub -- there's something like 3mm less "landing" on the freehub body for it. I wouldn't have believed it, but that overhang on the back of the right cassettes seems to make it work.
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Old 09-19-21, 12:53 AM
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Stick with the ten-speed cassette and their should be no "spoke tickling" at all.

Use an 11s lockring nested into the recess of a 12t smallest cog, and use a lockring with the longest threading that you can find.

Oh, and don't assume that any eight- or nine-speed cassettes will be as narrow at their mounting point as the ten-speed cassettes are (they are wider!).

To your original question, people just naturally assumed that the 10s cassette was if anything, wider, not narrower than the (actually wider) 8- and 9-speed cassettes.
I even assumed that there was a misprint in the literature telling me to use the thin spacer with the older hubs and not with the newer ones.

Last edited by dddd; 09-19-21 at 01:01 AM.
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