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11-34T Cassette hits Derailer roller

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11-34T Cassette hits Derailer roller

Old 11-08-04, 10:56 AM
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wonder squirrel
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11-34T Cassette hits Derailer roller

Just like the title says, can't seem to adjust out enough clearance. I thought the Deore derailers would work with a 34T cassette? Any ideas?
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Old 11-08-04, 12:51 PM
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Adjust your S-Stop. The screw at the BACK of the derailleur hanger.

Don't have a pic, sorry!
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Old 11-08-04, 01:01 PM
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The screw on the back of the mech, that buts up agains your hanger. It's called the b-tension screw. Screw/thread it in until you no longer have the problem. Usually doesn't take much; just enough to move the mech body backa nd up, so that the pully wheels don't rest on the cassette cogs.
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Old 11-08-04, 02:18 PM
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Well, he already tried to adjust it. I assumed he tried with b-tension screw (s-stop?), what other adjustment is there? Maybe the screw inside the parallelogram that changes spring tension could make a difference? (is that the s-stop?) Would taking a link out help? Maybe you have a medium cage and you need long cage. Bike shop could tell you for maybe no charge. Also they would not charge much you only need an adjustment.
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Old 11-08-04, 10:33 PM
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For whatever reason, some of them rub. I had a 2004 XTR on a 34t and it rubbed even with the b-tension the whole way in. Then I bent it in a crash and replaced it with another 2004 XTR, and the new one only has the b-tension in about 3/4 of the way, and no rub.
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Old 11-09-04, 09:06 AM
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I did try the adjustment screw, but no luck there. Taking a link out wouldn't help, I need to adjust the entire derailer back, not just the pullies. I've never taken the derailer off before, so is there an adjustment if I take off the main holddown bolt, and angle the derailer abit and bolt it back on?
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Old 11-09-04, 01:30 PM
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another option i've used in the past is a little bit longer bolt, that you can thread in a bit more. may or may not help.

or, you may just have an odd frame/derrailleur combo, and might be screwed. might have to go for a longer cage in that case, to handle the larger 34T cog.
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Old 11-10-04, 05:31 AM
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Originally Posted by scrublover
another option i've used in the past is a little bit longer bolt, that you can thread in a bit more. may or may not help.

or, you may just have an odd frame/derrailleur combo, and might be screwed. might have to go for a longer cage in that case, to handle the larger 34T cog.
Its a Deore 9speed derailer, and a Marin RockyRidge frame. 32T was stock, so 34T maybe too large after all. I think I'll try the longer screw and see if that works before I replace anything.
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Old 11-10-04, 07:32 AM
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Originally Posted by a2psyklnut
Adjust your S-Stop. The screw at the BACK of the derailleur hanger.

Don't have a pic, sorry!

Sorry guy's, I meant B-Tension, I was tired and had a brain fart! My Bad!
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Old 11-10-04, 09:28 AM
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Originally Posted by a2psyklnut
Sorry guy's, I meant B-Tension, I was tired and had a brain fart! My Bad!
Do you think the longer screw is viable? I have not been home yet to look it over
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