Questions tagged [derailleur]

Mechanism to move the chain from one sprocket to another.

16 questions with no upvoted or accepted answers
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What's the type of polymer material used in friction bushings in Sram rear derailleurs clutches?

The friction bushing of an (older) Sram rear derailleur clutch is shown below. What type of polymer material are these made out of? I'm also interested to know what friction materials are used in the ...
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59 views

Using 11-36t 9 speed derailleur with 11-40t 9 speed cassette

So I've got the shimano altus rd-m2000 and it says that it only supports 11-36t. However, I've seen people on forums say that it's possible with this derailleur. Even it I was wondering if with a ...
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155 views

Bent shimano 12 speed slx m7100 rear derailleur. Cause?

Rear derailleur (mileage: 600 miles) simply bent during my ride (I didn't crash and didn't notice something hitting rear mech). Bend is significant. It seems to me that the derailleur cage is bent, ...
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83 views

Front dérailleur does not shift into largest chainring

I have a Shimano ST-EF60-8R shifter with a Shimano FD3303 front derailleur - it does not go into 3rd gear which is the largest; it feels like the wire is going to pop. I just bought the bike, a Trek ...
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85 views

Adjusting rear derailleur

I have a 18 speed mountain bike. (Huffy) I recently had my rear derailleur replaced along with new shifters. Shifting in the lower gears is smooth and there is no noise when pedaling. However, when ...
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282 views

What is the thread size/measurement of the derailleur barrel adjuster?

The barrel adjuster threads on my commuter bike's RD have been marred when the barrel adjuster got bludgeoned on a side crash and I want to chase the threads before screwing in the replacement barrel ...
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338 views

SRAM eTap rear derailleur chain drop issue

I’m having an issue with my chain falling off the lower pulley wheel when (1) I hit a significant bump or (2) shift from large ring to small ring. But only in cogs 6, 7, 8. Any suggestions? I’ve ...
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249 views

RD-TZ40 ME Replacement

I've damaged the rear derailleur on my bike, and it needs to be replaced. I don't really have an LBS. I've looked around online, but I can't seem to find a correct replacement. I should clarify that ...
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640 views

mixed MTB/road bike for touring: uncleanliness of a Frankenstein setup

It appears that there are similar threads, so I'll reformulate it with more specific questions and taking the cue from comments. I am assembling my brand-new touring bike on a LHT frame, and I'd ...
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54 views

Cassette noise in gears 1,2 and 3 on newer bike

I was out riding when I broke my chain (too high of a gear and too steep of a gradient). Got chain replaced and now my cassette gear 1 (easiest gear) takes more power to pedal than gear 2 and when I ...
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33 views

Chain length with new derailleur

I bought a 8spd chain and am putting it on a 7spd bikes. I thought I could use either a seven speed or eight speed chain. But it looks like the chain is way too long should I take out some links if ...
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41 views

Ribble CGR Ti - Replacement Gear Hanger

The gear hanger on my bike broke about 3 weeks ago. This is a sacrificial part, but Ribble are out of stock and seem to have no idea when this critical part will be in stock again. I have looked on ...
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41 views

My shifter shifts only one gear up and down

I just was on a ride and all of a sudden I could only shift one gear up and down (in this case it was the 10th and 11th respectively the 21th and 22th). If I try to move the shifter further up (so up ...
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193 views

Shimano 9 Speed Cassette with Microshift Advent 9 Speed Road Shifter

I fancy setting up my old but amazing Cannondale F1000 with a dropbar and corresponding road shifters.The only affordable system I could find for that is the Microshift Advent 9 group. I'm happy with ...
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178 views

How do I find a compatible replacement for my rear derailleur?

I need to replace rear derailleur that was broken in an accident. The derailleur is Suntour with lettering stamped on inside - Maeda Ind. VIA HB. How do I find a compatible replacement?
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101 views

Is this FD compatible with this crankset: 2 teeth too litle

I am a proud owner of this guy. The crankset is SRAM S1200, 36/22 and the FD is SRAM X7, direct mount. However, the cage on the FD broke, and I ordered this item in a hurry. 1) Dyna-Sys 10-speed ...