Questions tagged [derailleur-rear]

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

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1answer
127 views

Derailleur broken?

I had a crash recently and now I have taken off my rear mech and seen that the guide pulley is spinning as usual but the tension pulley is getting stuck. There is a picture below of the broken pulley. ...
2
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3answers
283 views

Replacement rear mech hanger

I snapped my rear derailleur hanger yesterday on a ride and I wanted to know how might this have happedned and if so how can I prevent doing it in the future, I believe I was in the wrong gear going ...
4
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2answers
467 views

Largest sprocket below derailleur specification

I will install a Deore RD-M6000 derailleur on a bike that already has its cassette. The Shimano RD specification claims for a 32 to 36 largest sprocket, but my cassette (almost new) is a 11-28. Is it ...
3
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1answer
86 views

9 speed cassette and shifter with an 11 speed derailleur, will it work?

So recently my uncle gave me a Deore M5100 11 speed RD, but my current setup uses an Alivio shifter with a LTWOO A5 elite RD and an 11-46T cassette. While yes the LTWOO RD is designed to handle a 46T ...
10
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4answers
2k views

Upper pulley wheel suddenly totally off chain

Went for a bike ride today and thought the chain had slipped. Stopped and found the upper pulley wheel of the rear derailleur assembly was completely out of contact with the chain (please see photo)! ...
1
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1answer
86 views

is Shimano GRX ST-RX810-R 11 speed shifter compatible with Shimano XT M8000 Shadow+ Rear Derailleur - 11 Speed - Medium Cage GS

is grx ST-RX810-R rear shifter compatible with xt rear derailleur, Shimano XT M8000 Shadow+ Rear Derailleur - 11 Speed - Medium Cage GS
3
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2answers
91 views

One rear cog doesn't shift down

Recently, I have replaced a chain after noticing that the old one gained 0.75-1 percent of elongation. After that everything worked fine, i.e. shifting was consistent and smooth, drivetrain worked ...
0
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1answer
96 views

How to pick out a replacement rear derailleur

I have a Kent Nazz gravel bicycle. I am planning on making it a project bike to learn with. But I also really like the bike and how it feels. I got a Poseidon X also and I actually like the ride of ...
4
votes
1answer
81 views

Can I use a 42 tooth max derailleur on my 13-32 tooth 9 speed freewheel?

I have a 13 to 32 tooth 9 speed freewheel. I wanted to upgrade my bike by getting a clutch derailleur on it but couldn't find much 9 speed derailleurs with a clutch that were under my budget of $60. I ...
1
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4answers
3k views

Shimano 11 speed component combinations

I want to upgrade my bike to a 1x system using a Shimano GRX-crank upfront. I however have a flatbar and can thus only fit flatbar shifters. What is the lesser evil? 11-Speed XT derailleur with XT ...
2
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3answers
278 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 ...
1
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1answer
84 views

9 speed Shimano Deore derailleur compatibility

Will a 9 speed Shimano Deore derailleur be compatible with my 13-32 tooth freewheel?
3
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2answers
208 views

Switching from a short cage to a medium cage derailleur

I ruined my short cage 10 speed shimano 105 derailleur, I have the chance to get another and I found a medium cage, will this work by just replacing the derialleurs or will I need to switch other ...
10
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7answers
5k views

Do oversize pulley wheels increase derailleur capacity?

Do the large custom pulley wheels and cages increase the capacity of a derailleur significantly? There are reasonably priced ones on E-bay with 16t pulley wheels. Every demo of these I've seen says ...
4
votes
3answers
886 views

Is there a reason why the range of acceptable indexing varies across gears?

I was having issues with indexing my Shimano 105 R7000 RD previously. Basically, even after aligning the rear derailleur hanger as accurately as possible and changing cables, I noticed that, the ...
2
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1answer
101 views

Mix Match Using Wolftooth Tanpan

My current setup are using a full Shimano 105, medium cage GS 11-34t, crank are 50-34t. Through some digging, I want to upgrade the RD using Deore XT M8000 SGS Long, paired using wolftooth tanpan. ...
0
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1answer
47 views

Can I replace a broken Alivio M410 8speed rear derailleur with Acera T3000 9speed?

Damage to a bike resulted in a broken hanger and a damaged derailleur. I can't get hold of a like-for-like replacement derailleur (Alivio M410). Have seen others state that a 9speed derailleur will ...
0
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4answers
8k views

Can I change from short to long derailleur to increase cog size

I am have a tiagra 11-25 10 speed cassette with short cage. I am a poor climber and looking for extra gear; I would like to go 11-32 for this year until my climbing improves, will the short cage ...
1
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3answers
327 views

Using a mountain bike rear derailleur with road bike shifters

I am in the market for a new rear derailleur and was interested to find out if it is possible to use a mtb derailleur with road bike shifters and cassette and chain? Would it work without fault? Does ...
2
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3answers
119 views

Slight indexing issues on new 11 speed drivetrain -- normal?

I have a 20" folding bike that is about a month old and came with a Tiagra drivetrain. I subsequently switched it out to a 11 speed drivetrain (Shimano 105 R7000 with flatbar SL-RS700 shifter). ...
2
votes
2answers
509 views

Chain Slippage on MTB

I've got a 2009 Fuji Tahoe Comp 29er MTB with upgraded SRAM x.7 components and I'm having a couple issues. It is currently set up as a 1x9 and on gears 2-4 and sometimes 5 I'm having severe slippage ...
6
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0answers
202 views

Why did Shimano change their rear derailleur design going from a torsion spring to a tension spring inside the parallelogram?

The older Shimano rear derailleurs (pre 7700) use a torsion spring inside the parallelogram. But with the release of the 7700 group they switched to a tension spring which they continued using ever ...
1
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2answers
103 views

Issues with new rear derailleur

Recently decided to replace the rear derailleur on my 2020 Kona Honzo. I bought a 12 speed Shimano Deore M6100 SGS. Also got a new shifter to replace the stock Sram one. Been trying to set it up for ...
0
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1answer
107 views

What issues will I have when combining a RD-4700-GS SHIMANO TIAGRA (Rear Derailleur,Medium Cage,10-spd) with a SHIMANO DEORE 10-Spd, 11-36T Cassette?

I have a RD-4700-GS SHIMANO TIAGRA (Rear Derailleur,Medium Cage,10-speed) and a CS-HG50-10 (SHIMANO DEORE, 10-Speed, 11-36T MTB Cassette Sprocket). However, the RD-4700-GS is compatible with a Low ...
5
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1answer
144 views

Rear Mech Too Far Forward

I recently crashed my road bike in the city on some tram tracks, a terrible experience and don't recommend. I came off the bike and the bike itself landed on its right hand side and sustained damage ...
2
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1answer
69 views

SRAM NX Derailleur wheels hitting cable guide

The picture describes this issue better than I can. What is happening is that in the highest gear (i.e., in the smallest cog) the derailleur folds up as there is more chain to take up. However the ...
2
votes
5answers
557 views

Shimano Deore XT 9-speed rear derailleur with 9-speed 11-46T cassette?

I have an early 2000's bike with a 3x9 drivetrain. The front is a 22-34-44. The rear derailleur is a Shimano Deore XT RD-M750 and the cassette is a SRAM PowerGlide II 11-34T. I'd like to change to a ...
3
votes
3answers
354 views

Which replacement derailleur for a 1975-1985 Schwinn Le Tour?

I have an old Schwinn Le Tour bike from around the 1975-1985 range. The rear derailleur broke and no longer holds any tension, so I need to find a replacement that will work. The current one is an &...
3
votes
1answer
111 views

Rear derailleur body rubs against chain when in highest gear

I have a Vitus bicycle with a Claris groupset. When I put the bike in the highest gear, the chain starts to touch a part of rear derailleur. I am still understanding how to fix my bike on my own. So ...
1
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1answer
73 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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1answer
68 views

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 ...
-2
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1answer
311 views

Apparently too much rear derailleur cable pull

I have a Deore XT RD-M761 GS medium cage derailleur on my touring bike that seems to move too much per shift. It shifts the chain on a 11-30 8-speed cassette with chainrings being 36/48 and the ...
3
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1answer
3k views

Highest gear "jumps" under load

When I'm in the highest (smallest) gear and pedaling hard, it sometimes "jumps". I'm not sure if that's the right word, but I feel a bump in my feet for a moment and then I continue pedaling. It ...
0
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2answers
41 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 ...
1
vote
1answer
84 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-...
1
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2answers
7k views

Is Ultegra 6800 GS compatible with an HG800 11 speed 11-34 cassette?

I'm running Ultegra 6800 with a 52-34 chainring up front (not a typo: I replaced the 36 with a 34), and a 6800 GS (medium cage) derailleur at the back, and a 12-29 rear cassette. It works well. ...
2
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3answers
163 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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1answer
88 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. ...
1
vote
2answers
398 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 ...
1
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2answers
230 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 ...
10
votes
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 ...
1
vote
1answer
163 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 ...
2
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3answers
4k views

Can we use a 9 speed rear derailleur on a 8 speed bike?

I have a Rockrider 5.2 with a Shimano Altus 8 speed rear derailleur. After an accident it started to malfunction. I planned on replacing it with a Shimano Acera M3000 but then it is marketed as 9 ...
1
vote
3answers
803 views

Campagnolo Super Record H Screw

I am having trouble adjusting the shifting on my Campagnolo Super Record rear derailleur. I have set the high and low limit. I think the main problem now is that the jockey wheels are too far away ...
1
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2answers
76 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 ...
1
vote
1answer
103 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 ...
1
vote
1answer
144 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 ...
4
votes
1answer
351 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. ...
7
votes
2answers
897 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 ...
3
votes
1answer
501 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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