Can I use an XT/XTR RD with a road bike ?
08-20-07, 07:39 AM
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Can I use an XT/XTR RD with a road bike ?
I posted the same question on different forum but I'd like to get your opinions.
I want to install a 34T cassette and a mountain bike RD (probably an XT or XTR) on my road bike with 10 speed DuraAce group. Can I do that and are there any gotchas in doing so. Thanks.
I want to install a 34T cassette and a mountain bike RD (probably an XT or XTR) on my road bike with 10 speed DuraAce group. Can I do that and are there any gotchas in doing so. Thanks.
08-20-07, 07:45 AM
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10 speed shifters do not work with 9 speed cassettes. If you had 9 speed shifters it would work.
AFAIK, there are no 10 speed mountain cassettes yet (or hopefully ever)
AFAIK, there are no 10 speed mountain cassettes yet (or hopefully ever)
08-20-07, 07:57 AM
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Why not? If you adjust the stop right for the 9th gear the shifter will never go past 9. Done it several times. DA? this is on a road bike right? Keep your 10 speed chain for your front sprocket spacing to be correct. You are going to have to experiment with
cable pull adjustments to get it indexing right.
G
cable pull adjustments to get it indexing right.
G
08-20-07, 08:07 AM
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^ hmm. that is interesting. I always thought that 9 speed spacing (2.56mm) was different enough from 10 speed spacing (2.35mm) that you wouldn't get correct shifting when combining the 10 speed index shifters and 9 speed cassettes.
I guess I stand corrected
I guess I stand corrected
08-20-07, 08:16 AM
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Even if worse comes to worse, you could get a 9 speed right hand brifter.
Btw, I have that arrangement, XT rear der, 34T cassette, brfiters. It's nice when
things get really steep.
Btw, I have that arrangement, XT rear der, 34T cassette, brfiters. It's nice when
things get really steep.
08-20-07, 08:17 AM
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Yes, this is road bike which I am trying to convert into a climbing bike. Would the 10 speed chain work with the 9-speed XT cassettes ? Eventually I plan to change the front to go to a lower gearing (probably a triple) but that is an entirely different story.
08-20-07, 08:47 AM
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edit: I thought again, and actually it may be possible. The chain will be about 1 mm off at each end of the cassette if the derailleur is adjusted perfectly for the middle cog, which will cause some rubbing and noise.
Last edited by erhan; 08-20-07 at 09:09 AM.
08-20-07, 09:55 AM
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There's a way to get the ten speed shifters to move the RD a little further with each click. From Sheldon's site:
https://www.sheldonbrown.com/gloss_aa-l.html#alternate
Whether it works perfectly, YMMV.
And there are IRD ten speed "mtb" cassettes. Expensive, and I personally see no need for them, but they're out there-
https://www.sheldonbrown.com/gloss_aa-l.html#alternate
Whether it works perfectly, YMMV.
And there are IRD ten speed "mtb" cassettes. Expensive, and I personally see no need for them, but they're out there-
08-20-07, 11:07 AM
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I have a cross bike set up exactly this way, with an XT rear derailleur and 9 speed Ultegra shifters, 11-32 cassette. Works beautifully! I'm going to ride that setup in a very hilly race coming up as well.
If you have a 10 speed bike (I don't think the OP specified) you can get a 29 tooth big cog fairly cheaply and make a custom "bailout gear" cassette; I have a friend who's done that.
If you have a 10 speed bike (I don't think the OP specified) you can get a 29 tooth big cog fairly cheaply and make a custom "bailout gear" cassette; I have a friend who's done that.
