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Old 08-13-05, 10:10 AM   #1
fartecho
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shimano xt dual control shifter compatibility??

hey there, just wondering if anyone knows whether or not older (say as old as 2000) shimano xtr rear derailleurs are compatible with the new xt dual control shifter/brakes? looking to upgrade my current derailleur and don't want to get stuck with something i can't use. any help's appreciated. cheers.
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Old 08-13-05, 10:15 AM   #2
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If the old xtr rear deraileur was rapid rise then you will be fine. Otherwise, I think it will still shift, just backwards...
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Old 08-13-05, 10:56 AM   #3
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thanks much...i guess i should also ask...do the newer sram rear ders. work with the shimano dual control's?

cheers.
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Old 08-13-05, 10:59 AM   #4
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No they don't. Sram uses a 1x1 ratio and shimano uses a 2x1 ratio.
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Old 08-13-05, 11:02 AM   #5
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ok cool, thanks again!
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Old 08-13-05, 11:12 PM   #6
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Quote:
Originally Posted by Maelstrom
If the old xtr rear deraileur was rapid rise then you will be fine. Otherwise, I think it will still shift, just backwards...
I have a normal rise XTR and my friend has a rapid rise XTR. We both run dual controls and I think normal rise makes more sense. You push down harder to make the bike climb gears.
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Old 08-13-05, 11:52 PM   #7
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Wasn't giving an opinion. Just stating a fact. I don't like rapid rise.
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Old 08-14-05, 01:01 AM   #8
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Rapid rise is good with dual control ( i quite like it) but terrible with rapid fire IMHO, rapid fire makes more sence and is more user friendly with with low - normal.

can somone explain the difference ith 1:1 and 2:1?
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Old 08-14-05, 01:02 AM   #9
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Will the dual control shifters work with hydro brakes other than shimano, like Hayes? I would guess not since they are designed to use mineral oil as the brake fluid where as all the other use regular DOT 4 or 5 brake fluid.
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Old 08-14-05, 07:28 AM   #10
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Quote:
Originally Posted by HDTVKSS
can somone explain the difference ith 1:1 and 2:1?
With 1:1, the shifter mechanism moves the exact same amount as the derailleur and cable. With Shimano's 2:1, the shifter mechanism moves twice as much to move the cable and derailleur the same amount.

Some say this gives the edge to SRAM with regards to precision shifts.

Last edited by shane45; 08-14-05 at 03:18 PM.
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Old 08-14-05, 08:23 AM   #11
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Quote:
Originally Posted by jameyj
Will the dual control shifters work with hydro brakes other than shimano, like Hayes? I would guess not since they are designed to use mineral oil as the brake fluid where as all the other use regular DOT 4 or 5 brake fluid.
Good guess
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Old 08-15-05, 12:24 AM   #12
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Originally Posted by Maelstrom
No they don't. Sram uses a 1x1 ratio and shimano uses a 2x1 ratio.
Don't SRAM make a few 2:1 deraileurs?
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Old 08-15-05, 06:33 AM   #13
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I don't believe so. (And it's the shifters - not the derailleurs - that are 1:1)
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