Questions tagged [derailleur-rear]

Questions referring to the derailluer responsible for moving the chain along the cassette

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0answers
12 views

Has anyone set up an 11sp ZTTO 11-52 cassette with an 11sp XT SGS and 11sp XT shifter?

I had 1x10 setup with a 10sp XTR shifter, 10sp Sunrace cassette (11-46) and an 11sp XT SGS derailleur and it worked very well (with the limit screw on the mech adjusted). The crank is a 32t RaceFace ...
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2answers
32 views

Rear derailleur won't go to smallest cog (road bike, MICROshift R8)

I checked, When the shifters are such that the chain should be on the smallest cog, the cable still has a slack, which I understand then it means is not a cable adjustment thing, If a very gently ...
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1answer
62 views

Problems upshifting with 105 5700 derailleur w/ Roadlink

I found a similar question here but no practical answers, wondering if anyone has encountered anything like this. I have a 105 5700 long cage rear derailleur with Roadlink extender installed and an 11-...
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1answer
81 views

Why doesn't the cassette rotate when I backpedal?

I have an old bicycle where backpedaling causes the cassette to not rotate. Instead, the cassette stays still and the rear derailleur bends, providing new chain to go around the backpedaled chainring. ...
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3answers
106 views

Disassembly of Shimano Acera RD-M3000

I want to disassemble my Rear Derailleur 9-speed -> https://bike.shimano.com/en-EU/product/component/acera-m3000/RD-M3000.html Here is a video of instructions for disassembling a general rear ...
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2answers
154 views

Converting a derailleur to internal gear hub

I use my bike for commuting and trips around the countryside (about 400-500km per trip). I'm tired of changing the chain and gears (when I overdrive the chain's lifetime - my bad, I know) as often as ...
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2answers
198 views

Impossible to properly adjust rear derailleur indexing

I can't adjust the rear derailleur to shift properly. Sometimes it hesitates to downshift from 1st to 2nd and when it shifts to 2nd you can hear a faint clanking sound, like the chain is trying to ...
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2answers
2k views

Chain popped out of derailleur and wrapped around itself - how? why?

During my ride yesterday, I've hit a really weird mechanical and would love to understand. So here's the situation - I'm riding along, start on a hill, stand up and push some power, suddenly hear ...
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2answers
75 views

RD-5700 impossible indexing, hard cable pull (fresh setup)

I have replaced the cable and housing on a road bike with ST-5700 and RD-5700. The cable is slick stainless. If I activate the shift lever when holding the cable where it exits the first housing ...
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1answer
94 views

Cannot remove rear wheel — axis on the right side is stuck

My question could be a follow-up of this question. This is what happened: I took out the rear wheel to make sure I would be able to do so in case of a puncture with the tools I was going to take for ...
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1answer
74 views

Will a shimano acera rear derailleur work with a shimano altus cassete?

Got sick of breaking rear axles. Im going to convert to a freehub. Currently i have a shimano acera 9 speed rear derailleur. I found a shimano altus cassete which has a huge 36 tooth sprocket which is ...
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1answer
112 views

Shimano RD M5120 and 10 / 11 speed compatibility

I thought the shimano mtb 10 speed is completely separate system and isnt compatible with anything else. However now there is a 10/11 speed RD - the RD-M5120 SGS. I was wondering how does this work. ...
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2answers
623 views

Rear derailleur moves forward when pedalling stops

Can you please help me to resolve the issue I am having? When I stop pedaling rear derailleur moves forward by inertia. This happen almost every time i stop pedaling and start coasting. I have a video ...
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1answer
489 views

Rear cassette Identification

Can anyone identify this type of hub? I need to replace the cassette, but I cant find anything that matches the cassette or hub. Its from a Schwinn Traverse 26". Thanks
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1answer
72 views

Can I mix shifter (deore m4100 10 speed) with my Rear Derailleur (deore m6000)?

Can I use deore m4100 10speed shifter with my RD deore m6000 10speed RD?
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1answer
64 views

6 speed derailleur works for 7 speed cog?

I am confused with description it say 6 speed, but below mention 7 speed as well. Will this derailleur work on 7 speed freewheel?
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3answers
949 views

45 day old SRAM rear derailleurs jumps gears

have a 1x12 SRAM NX drivetrain on a fairly new full suspension MTB. Been feeling great but yesterday it began skipping a gear when I shift. That is, if I start in 1 and click 4 times I wind up in 6th ...
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2answers
218 views

What kind of Rear derailleur do i have and what RD should I buy as a replacement?

I have an old mountain bike (21 speed) and I'm not sure what kind of rear derailleur i have. So far the performance is still okay but I was planning to replace it with my spare RD (SunRun Index) but ...
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3answers
94 views

Why would 6 stops on a Shimano shifter travel 7 cogs with a Shimano derailleur?

I'm replacing the rear shifter on my old Kona mountain bike from the late '90's. It has an 8-speed rear cassette with a Deore XT derailleur. I got a basic ST-EF500 8-speed Shimano shifter/brake ...
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2answers
766 views

How can rear derailleur work the opposite way it's supposed to?

I took a look at my friend's city bike's gears, as his rear gear shift levers felt almost completely "limp". Other (cleanliness and wear) issues aside, one thing that struck me as odd was ...
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1answer
58 views

Does bike geometry or wheel affect maximum cog size?

I got a used Cannondale Super X 105 during the winter and when I was getting it ready for the summer, I couldn't index the rear derailleur properly. It wouldn't shift to the largest cog and shifting ...
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2answers
31 views

Campagnolo Veloce compatibility - small rear derailleur with larger (29 or larger) cassette?

I recently bought myself a second-hand Condor Fratello. It is fitted with Campy Veloce (mix) groupset, currently with a 12-25 cassette. I'm coming from riding a 105 (11-32 cassette) for years, and ...
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1answer
54 views

Rear derailleur malfunctions

Around 1-2 weeks ago I sent my bicycle to my dealer because my cassette wasn't moving properly when I examined it by turning my bike upside down and my shifter shifted 2 times instead of 1 and ...
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2answers
165 views

Consequences of using smaller replacement pulley/jockey wheels in the rear derailleur

I have a new rear derailleur (Microshift Advent X) which uses somewhat oversized cog wheels with 12 and 14 teeth. I am known to wear these wheels during the winter season, so I am already planning for ...
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2answers
74 views

RD + cassette compatability

I have a Shimano 11-42T 10s cassette and Shimano XT M786 SGS Deore RD, can I make these work together by using goatlink or am I wasting my time?
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1answer
133 views

Shifter cable cut deep groove into the rear derailleur casing

I have an old Shimano RD-M760 DEORE XT Rear Derailleur, where shifter cable cut a deep groove into the guiding steel tube. Here is a picture: Is that tube replaceable? I think that groove is a ...
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1answer
37 views

Still skipping cogs when shifting after indexing and replacing shifter

I have been having problems with cogs being skipped when shifting up or down. Heavy pedaling will cause shifting sometimes. To fix this I tried resting the high and low limit screw and reindexing the ...
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1answer
124 views

Able to shift to final gear on bike, but not on smart trainer

I own a Trek Crossrip LTD 2016 edition bike with a SRAM 11-32 cassete in the back. I also recently purchased a wahoo kickr core to go along with the bike. When the bike has the wheel in and not ...
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2answers
72 views

Conditional clicking from back wheel

This drives me nuts for months, I cannot figure out where the clicking sound comes from. Only comes out after driving uphill, and not on the largest back gear, also not on smallest! Only happens when ...
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3answers
119 views

Chain keeps skipping - did I cut it too short?

My old chain was skipping a lot, so I replaced it with a new one. The new chain barely skips at all, except for in the highest gears/smallest three cogs on the back cassette. The skipping comes ...
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3answers
103 views

Rear deraileur maintenance / adjustment

I have a 9 year old road bike with Shimano 105 groupset (approx 20 000 miles). I clean the deraileur as best I can but have never taken it apart or replaced anything in it. Recently, when I use the ...
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1answer
67 views

My bike is slipping only in highest gear

I used to ride my bike in highest gear all the time, even uphill, and didn't shift down unless i absolutely needed to. Then my highest gear started slipping on uphill and even on straight road if i ...
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1answer
167 views

Shimano SIS rear hub offset question

I'm a beginner bike mechanic and am working on a used project bike I got cheap. I was just switching out the rear tire and tube for some new 700x25c Gatorskins and when I went to go put the wheel back,...
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1answer
64 views

Rear Derailleur wire sags completely in higher gears

I have a Shimano 7 speed rear derailleur which used to work properly. Lately I observed I was unable to shift down to gear 7 from 6 but let the problem be. The derailleur would move very little (there ...
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0answers
73 views

Can i use claris R2000 rd on 14-34T mega range sprocket?

I have sprocket 14-34T with mega range. I planned to change my old (maybe 1990's) shimano tourney rd to shimano claris R2000 medium cage. Some of my local bike shop said that i can replace with claris ...
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1answer
83 views

Rear derailleur movement where it is bolted to hanger

I've checked the hanger and that seems solid. There is some movement/wobble in the derailleur at the bolt that connects it to the hanger, like it's not quite tight enough even though it's tightened as ...
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3answers
479 views

Can I 'upgrade' a 9 speed Tiagra RD to Sora to lower my gears?

My girlfriend has an oldish Cannondale CAAD8 bike with Tiagra 9 speed triple. The rear derailleur is the RD-4500 GS with a 12-26 cassette. The front is a 50-39-30. She'd like to get a lower bottom ...
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2answers
175 views

Shimano 105 Rear Derailleur Housing Frayed

While adjusting my rear shifting cables I noticed that the small piece of housing, which emerges from where the barrel adjuster is threaded in, was broken. Is it necessary to replace this or is it ...
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3answers
156 views

How to know and which to use?

I have these shifters and derailleurs: front shifter Shimano ST-EF41, 3spd front derailleur Shimano FD-TZ500, 3spd rear shifter Shimano ST-EF41, 7spd rear derailleur Shimano RD-TZ31, 7spd I want to ...
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2answers
143 views

Overtightned the rear derailleur cable clamp. It is now blocked

I have over-tightened the bolt on the rear derailleur clamp (Shimano tourney). There is no resistance on the bolt, when tightening it or untightening but the clamp does not move anymore. I don't want ...
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3answers
211 views

Rear derailleur doesn't go to smallest cog

I'm sure it is a simple fix to this, but please bear with me. I have recently swapped my rear wheel on my bike (with an identical one, keeping the same cassette). Upon putting it back in, I noticed ...
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4answers
613 views

Swapping wheels and cassettes with Shimano GRX 600/800

I am in the market for a gravel bike. I plan on getting a second set of wheels for road rides. This bike will most likely have Shimano GRX 600 or 800 2x and an 11-34 cassette. Assuming the rear ...
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1answer
171 views

Derailleur indexing problem - doesn't change from 8 to 7 but skips form 3 to 1

I just fitted a new 8 speed Shimano cassette (CS-HG41-8) and chain (CN-HG40) to my new turbo trainer (Elite Suito). Answers to my previous question suggest that this should work OK (see Can I put a 8 ...
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2answers
258 views

Problem with cassette and derailleur

I am a newbie and this is probably a simple question. I have a new Trek Domane 2. It is the 2020 model. From what I can tell on the Trek website, it has a Shimano Claris R2000, 8 speed shifter. Based ...
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1answer
132 views

Will Shimano Acera 8 speed derailleur work on 6 speed freewheel?

I want to get a higher quality rear derailleur from the Tourney which I have right now(it broke). I want a Shimano Acera RD-M360-SGS. The problem is that its 8 speed. Will it work on my 6 speed ...
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2answers
212 views

Resealing bearings in chinese OSPW

I am currently rebuilding an old steel bike with some modern parts and am searching for a OSPW because it looks quite cool. However a "real" one from CeramicSpeed seems way to expensive for ...
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2answers
158 views

Is the Shimano SL-M590 shifter compatible with XTR RD-M900 rear derailleur?

Shimano is known for making their high end components incompatible with their lower ranges (e.g. dura-ace 7400). How do they handle this on their mountain bike range? In my case, I'd like to run a RD-...
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3answers
85 views

Which Rim Size will Fit My MTB?

I just got an old MTB, I need to replace all the parts except the frame since the parts are in broken condition, except the sprocket and cassette I'm a total newbie and LBS here cost crazily high, so ...
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2answers
181 views

Is my Tiagra rear derailleur missing a screw?

Just flipped my bike over, spotted this hole in the underside of my Tiagra derailleur. Looks like a screw should be in there, but there it is not. Should there be? Should I worry? What is this screw ...
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2answers
222 views

Change chain with cassette or do nothing?

Sometimes as a hobby I repair entry level bikes for myself or for friends and family. The rear derailleur is working fine (no skipping/ slipping etc..). But than I discover (with a chain checker), ...

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