Questions tagged [derailleur]
Mechanism to move the chain from one sprocket to another.
32 questions with no upvoted or accepted answers
6
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The bike derailer will automatically drop to the lowest gear in the rear whenever my cadence slows
I have a REI Coop CTY 2.2 bicycle. Whenever I am biking and my cadence slows down, the bicycle derailer automatically (I am not shifting) to the lowest gear on the rear derailer. Any suggestions on ...
- 61
5
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177
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Can't find derailleur hanger for an old Nakamura
I tried local parts shops and tried the internet and still can't find the right hanger, And I no longer have the old broken one.
I can't even find the bike on the internet, The only photo I found was ...
- 51
4
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Sram AXS derailleur does not shift
Have you encountered a problem where a rear AXS derailleur stops shifting? Any suggestions?
I bought a mint 2023 GX AXS derailleur on Marketplace, it worked for the first short test ride on a road but ...
- 141
3
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73
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How to properly adjust front derailleur height when it can sway significantly once the clamp bolt is loosened up?
I'm trying to adjust derailleurs myself, for the first time .)
the model is DEORE XT
following the how-to
https://www.wikihow.com/Adjust-a-Shimano-Front-Derailleur
the very first step - adjusting its ...
- 31
2
votes
0
answers
135
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Gear up lever will not move
I just got a new bike and unfortunately fell off it on the first ride, now the lever to change gear for my derailleur Mezzu Microshift is stuck in the position it would be if you had upped a gear ...
- 121
2
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0
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432
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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 ...
- 21
2
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84
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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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1
vote
1
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207
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pedals only move bike at highest gear
Recently my bike will only move if I’m in the highest gear. I can pedal at lower gears but it will not move my bike forward at any reasonable speed and when I get up to even a very low speed the ...
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1
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0
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83
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Shifter only clicks in one direction
My bike shifters on both the front and rear derailleurs suddenly stopped wanting to shift down. They both shift up no problem and the cable looks fine but when I try to shift down on either of them ...
- 11
1
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0
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764
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Shimano 105 r7000 front derailleur hard and clunky shifting, shifter harder to shift
A total newbie to DIY bike repair here, and my Shimano 105 r7000 FD is shifting really harshly after a wash. Washed it with dish soap plus water solution, however I did not give the FD any specific ...
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1
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0
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137
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Cable rubs on mountain bike derailleur
the hole were the cable goes through does not have a guide. The cable rubs against the aluminum housing. What is suppose to go in there?
- 831
1
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136
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Rear Derailleur Noises
When I pedal on my bike there is a loud noise that increases as I go into easier gears on the cassette and in the easiest gear I can see the chain catching on the derailleur jockey wheels, why is this?...
- 158
1
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SRAM Yaw Front Derailleurs
Can anybody help me with any tips on fine-tuning the adjustments on this derailleur (Force 22)? The positioning as far as I can tell is good, I can stick a penny between the teeth of the big ring and ...
- 31
1
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0
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145
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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 ...
1
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0
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1k
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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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1
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0
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45
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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 ...
- 831
1
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0
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141
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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 ...
- 11
1
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0
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1k
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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 ...
- 11
1
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0
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109
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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 ...
- 1,318
1
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0
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934
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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 ...
- 1,315
1
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0
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843
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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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1
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0
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387
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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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1
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0
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141
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Is this FD compatible with this crankset: 2 teeth too few
TL;DR:
Q: Can I use an SLX FD on an all SRAM rig?
A: Usually not. In the current case Trek Slash 7 2013 & Shimano M786 - no adjustment sufficed to produce a noise-free ride.
I am a proud owner of ...
- 14k
0
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0
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37
views
Derailleur clunks into 7
I have a Shimano 7speed. The shifter goes full range, but when putting it into 7, the derailleur clunks down in a stepwise fashion, especially with increased power applied.
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SRAM Gx 10 sp detailleur rotates when bolt tigtened?
It seems to be part of the design of the derailleur? Before I had the X7 which stayed put. Unless I have a non compatable dropout for the Gx?
0
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1
answer
47
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Need Hanger Adapter for Acera Rear Derailleur for Hero Sprint rx2 bicycle frame
First I had the Tourney derailleur. Which is somehow destroyed, and I've lost it. I promptly bought an Acera online, expecting to upgrade. A lot has been spent. Here's the issue: I wasn't aware the ...
- 1
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0
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SRAM 1:1 shifter + Shimano 11 speed MTB RD
I'm planning my next bike build with an 11-50 cassette but I don't want more than 10 gears for personal preferences. I've seen Chinese-brand drivetrains (LTWOO) that can do this but I want something a ...
- 1,315
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32
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My ultegra front 3x derailleur adjustment screws are seized and the shift is unreliable into the small cog. Can I replace it with something similar?
I need to replace my 15-year old Ultegra triple front derailleur. I can't find the same model for sale online. What alternative options can I try please?
0
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133
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Broken Rear mech inner plate
My chain got caught in the guide plate and broke the encircled part of the rear mech (See photo) I'm using Shimano GRX 810 Rear derailleur. There are no observable misalignment. Question, is it safe ...
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0
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198
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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?
0
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1
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35
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Rear derailer missing and needing correct one, schwinn with numbers on bike in question..it is a newer model .maybe a trailways but not certain of mo
I have been gifted a schwinn that needs a rear derailer with numbers 365505 snxds 21h16996. Can you assist me in getting the correct derailer?
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-3
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1
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295
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How to adjust rear derailleur indexing in a mix-and-match drivetrain in the easiest manner?
I have a touring bike where the drivetrain has been built not according to Shimano's instructions. For example, the shift lever is SL-BS64-8 Ultegra 8-speed bar end shifter that according to Shimano's ...
- 21.2k