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Dura-Ace/XTR compatability(8 posts)

Dura-Ace/XTR compatabilityti newbie
Jan 22, 2002 8:18 AM
I was thinking of modifying my 2001 dura-ace drivetrain to get me lower gears by adding a an XTR rear derailleur- this saves some 500 over a triple upgrade. Has anyone tried this? the Ultegra and dura-ace triple rear derailleurs are limited to only 27T.
thanks
This was a topic a few months ago......Len J
Jan 22, 2002 8:43 AM
you might want to do a search.

FWIW, the ansewer was that it worked, D/A Shifters worked with XTR Der. & performance didn't suffer. XTR goes up to a 34 Cog. The only negative mentioned was the "Dork" factor.

BTW, when you change, I think you will need to resize the chain.

Len
re: Dura-Ace/XTR compatabilitymerckx56
Jan 22, 2002 9:25 AM
it'll work fine. i have a xt r/d with ultegra on the cross bike and shifts flawlessly. do check for chain length though!
re: Dura-Ace/XTR compatabilityLC
Jan 22, 2002 9:47 AM
If you can find a Short cage XTR or XT you will find the shifting much quicker. Only catch is that it is only rated to handle up to a 32.

I found the shifting suffered noticable (slow) installing a long cage, but the short cage performs good enough that you wont notice the change that much.
re: Dura-Ace/XTR compatabilityweiwentg
Jan 22, 2002 10:03 AM
what of the gear ratios on the MTB cassettes? they don't quite look optimal for cruising.
re: Dura-Ace/XTR compatabilityLC
Jan 22, 2002 12:28 PM
On a 11-32 I would take out the 11 and use one of the cogs from your old road cassette to help fill in the gaps.
re: Dura-Ace/XTR compatabilityChen2
Jan 22, 2002 1:10 PM
It will work and shift well if every thing in the drive train is 9 speed compatible. The downside is the wide spaced ratios of the mountain bike cassette. You could replace the 11 or 12 with a 13 and that would help a bit but you would still be missing the 15 and 17. We had my wife's bike set up with an XTR rear derailleur and cassette, but she missed not having the 15 and 17. I was surprized that she could tell the difference but she kept complainging about not being able to find the gears she needed for cruising speeds. So now we've put the Ultegra rear der and cassette back on and replaced the crank-set and bottom bracket with a Campy Racing T triple 50-40-30 which is now running with the Shimano drive train. I guess that makes it a Shimanolo Ultorus group.
-Al
re: Dura-Ace/XTR compatabilitymclements
Jan 24, 2002 11:07 AM
This is standard fare on most tandems -- well with Ultegra anyway. You don't find DA on tandems much because Ultegra is more duarable. Ultegra gruppo with XTR rear derailleur & sprockets. They work well together and the XTR gives you a wide range of gears.