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Old 07-02-09, 04:17 PM   #1
surreal
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shimano xtr m960 rear derailer

greetings.

I just ordered me one of these, sort of on impulse, from jenson. It's a rapid-rise model, last generation (maybe even 2 generations back), long-cage. Cheap as anything, at $75.

This is for my work-in-progress hardtail project. I was kinda stoked to get the xtr for less than xt. But, going on mtbr, i saw a lot of ppl whining about the thing being a finicky and troublesome prima-donna.

Now, many of the reviews were old, and they were blaming the 9speedness (vs 8 speedness). Others were blaming the rapid-riseness. Now, i fully love rapidrise r.derailers. And, i'm thoroughly cool with 9speed, in this day n age. I recall a lot of backlash with the poor shifting of early 9speed shimano groups, and i reckon this had something to do with the shifters more than anything else...

I currently run (among other things) lx rapidrise rear derailers with 9 speed bar-end shifters on 2 different bikes (a mountain bike with paul thumbies, and a tour-rig, with the shifters crammed in the end of drop-bars, as they're meant to be used.) I've not had any problems, really, beyond the initial tweaking and the turning of a few barrels after the cable stretches. I intend to use 9speed barcons on thumbies with the 960 xtr.

My questions are as follows:
-should i be concerned that this r.derailer is gonna make me angry?
-should i start calling derailers "mechs", like the limeys do? The term "derailer" has never felt comfy to me, due to all the frenchness that sometimes surrounds it.

thanks,
-rob
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Old 07-02-09, 07:37 PM   #2
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The 960 R DER should not make you angry. It works like a champ when properly set up. The main reason people were mad when this thing first came out was because XTR was rapid-rise only, and because setting it up is backwards from a high-normal R DER. Shimano was shoving the whole rapid-rise thing down everybody's throat by not making a high-normal R DER for it's top-of-the-line component group.
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Old 07-03-09, 05:36 AM   #3
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I love mine, hell I love all my XTR 960 doohickies.
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Old 07-03-09, 05:42 AM   #4
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My RR has always been a little more finiky than my standard one especially in wet muddy conditions.
Even the standard one is a prima donna.
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Old 07-03-09, 02:58 PM   #5
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uh-oh. 2 votes for, one vote against.

Personally, I think rapid-rise is the bee's knees. I think ti makes loads of sense for off-road riding, where we often encounter sudden short-and-steeps, and need to downshift in a hurry under load. I read alot of aged reviews where they dis the 960 group for not being able to handle multiple downshifts, but when you rock barcons with thumbies, you can dump the whole cassette, either way, with little problems. I have a rapid-rise lx on my tour bike, because a heavy load coupled with some climbing is better handled by a reverse spring. The only problem is, the right shifting action is reversed on my tour bike versus my roadie, which can get weird when switching bikes. Especially when you're drunk. =P

The rapid-rise thing isn't scaring me. Nor are the controversial shifters, b/c i won't be using them. I'm mostly nervous that i'll be missing shifts or ghost shifting due to the finicky nature of the component itself. However, I'd be danged surprised if the thing were less precise and reliable than my LX r.derailers, so I'm probably not worried. I can set-up and maintain derailers pretty well these days, plus the thing is already ordered, so i guess i need to just do my best.

thanks for the feedback, y'all.

-rob
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Old 07-03-09, 05:26 PM   #6
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You'll be fine with thumbies, but in my opion the best thing about rapid rise is climbing. Dumping a gear when out of the saddle is way more natural with the finger. And to be honest I switch back and forth and make fewer wrong shifts on the RR, Although all of my other bikes in the past have been high normal.
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Old 07-04-09, 06:01 PM   #7
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born2, when i say "under load", i pretty much mean climbing or trying to get a roll on with a ton of groceries but you're in too high of a gear. These are the type of situations, when you emergency-shift to climb a hill or you're downshifting too late with a lot of weight,m where the rapid rise truly shines. With high-normal derailers, these types of maneuvers would lead to pooping and lots of stress on the drivetrain. With low normal, the chain happily glides to the larger cogs on the cassette. I'm sold. I just never had a DB deraileur before, and i was worried that the m960 might be a **** about needing fine-tuning all the time. As of yet, the highest-zoot rear derailer i've used is an ultegra SS on a road bike. (very nice, but of course it's high-normal, which works great for what i use that bike for.)

-rob
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Old 07-04-09, 06:57 PM   #8
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Quote:
Originally Posted by surreal View Post
born2, when i say "under load", i pretty much mean climbing or trying to get a roll on with a ton of groceries but you're in too high of a gear. These are the type of situations, when you emergency-shift to climb a hill or you're downshifting too late with a lot of weight,m where the rapid rise truly shines. With high-normal derailers, these types of maneuvers would lead to pooping and lots of stress on the drivetrain. With low normal, the chain happily glides to the larger cogs on the cassette. I'm sold. I just never had a DB deraileur before, and i was worried that the m960 might be a **** about needing fine-tuning all the time. As of yet, the highest-zoot rear derailer i've used is an ultegra SS on a road bike. (very nice, but of course it's high-normal, which works great for what i use that bike for.)

-rob
Quote:
Originally Posted by surreal View Post
born2, when i say "under load", i pretty much mean climbing or trying to get a roll on with a ton of groceries but you're in too high of a gear. These are the type of situations, when you emergency-shift to climb a hill or you're downshifting too late with a lot of weight,m where the rapid rise truly shines. With high-normal derailers, these types of maneuvers would lead to pooping and lots of stress on the drivetrain. With low normal, the chain happily glides to the larger cogs on the cassette. I'm sold.
That doesn't paint the same performance picture I've had with it since 05 but whatevah.

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and i was worried that the m960 might be a **** about needing fine-tuning all the time.
That has been my experience with the RR, Maybe just mine.
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