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Home > Forum > Triathlon Forum > Changing an 11 speed cassette to a 10 speed?

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Changing an 11 speed cassette to a 10 speed?
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S Train
Sep 24, 16 5:36
Post #1 of 7 (716 views)
I saw a post from Dev about something similar from a few years back but my circumstances are slightly different.

I have a 10 speed bike and recently bought a set of wheels that comes with an 11 speed 11-25 cassette. Could I remove the 16t cog to make it a 10 speed cassette? I also bought 1 and 1.85mm spacers to make my current 10 speed cassette work on the 11 speed hub so I can use those too.

I know that 11 speed cassettes aren't just "one bigger" and that the spacing between each cog is smaller than on a 10 speed cassette. If I removed the 16t, would it shift properly? Would my chain be too wide? Would I be better off just spending the $40 for a 105 10 speed 11-25 cassette?
Last edited by: S Train: Sep 24, 16 5:37
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Re: Changing an 11 speed cassette to a 10 speed? [S Train] [ In reply to ]
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Nicko
Sep 24, 16 7:57
Post #2 of 7 (676 views)
I successfully use:
a 9spd cassette with a 9spd or 11spd chain
AND
a 7spd cassette with a 9spd or 11spd chain
AND
an 11spd cassette with an 11spd chain
USING
the same 9spd aerobar shifter, in 'friction' mode (not indexing)
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Re: Changing an 11 speed cassette to a 10 speed? [S Train] [ In reply to ]
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grumpier.mike
Sep 24, 16 7:58
Post #3 of 7 (676 views)
Sounds like you would be better off with spending 40$ on the correct cassette. Trying to properly space the cogs, which are slightly thinner than 10 speed could be a pain.
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Re: Changing an 11 speed cassette to a 10 speed? [S Train] [ In reply to ]
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ttusomeone
Sep 24, 16 8:04
Post #4 of 7 (672 views)
Sell the 11 speed cassette and buy a 10 speed. I bet you could just about break even if not pocket a little money depending on which 11 speed you have.
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Re: Changing an 11 speed cassette to a 10 speed? [S Train] [ In reply to ]
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DarkSpeedWorks
Sep 24, 16 9:44
Post #5 of 7 (646 views)
S Train wrote:
I have a 10 speed bike and recently bought a set of wheels that comes with an 11 speed 11-25 cassette. Could I remove the 16t cog to make it a 10 speed cassette?
You could do that, but the 10 cogs would still have 11 speed spacing, so this new modded cassette would not work properly with a 10 speed drivetrain.

Quote:
I know that 11 speed cassettes aren't just "one bigger" and that the spacing between each cog is smaller than on a 10 speed cassette. If I removed the 16t, would it shift properly? Would my chain be too wide?
Not sure if the chain would be, or would not be, too wide. But the spacing of the cassette cogs would not line up with the indexing of the 10 speed shifters. This would become a problem every time you shift further to the end of the cassette.

Yes, buy a 10 speed cassette, that will solve the problem.

Hope that helps.
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Re: Changing an 11 speed cassette to a 10 speed? [DarkSpeedWorks] [ In reply to ]
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S Train
Sep 24, 16 12:46
Post #6 of 7 (612 views)
Ok, great. I'll sell the 11 and buy a 10.

Thanks everyone.
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Re: Changing an 11 speed cassette to a 10 speed? [S Train] [ In reply to ]
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Barchettaman
Sep 24, 16 13:18
Post #7 of 7 (601 views)
A 10-speed Tiagra cassette would work equally well and be even cheaper.
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