Questions tagged [derailleur-rear]

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

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8
votes
6answers
450 views

Best drivechain for beach, seaside, coastal, winter, generally salty environment?

I live by the beach. Although I guess this is a similar problem to those who ride on salt-laden winter roads... It does take a while but, as evidenced by the endless bikes abandoned around the ...
5
votes
2answers
83 views

How do I adjust a Shimano RD-M6000 properly?

I've got 2 new fat Bikes (Framed Minnesota) with Shimano RD-M6000 rear derailleurs on them. (And another with an RD-M4120.) They're all using Shimano Deore triggers from the same line. I am having a ...
0
votes
1answer
78 views

What's the difference between a Shimano RD-M6000 and an RD-M4120?

I ordered some family bikes recently, and all were supposed to come specced with RD-M6000 medium cage rear derailleurs. The first one out of the box has an RD-M4120, which is a cheaper model, as far ...
6
votes
1answer
484 views

Will my mix-and-match drivetrain work?

I'm currently assembling a 3x9 speed commuter bike with the following groupset details: Crank: Shimano Tourney TY501 FD: Shimano Tourney TY510 RD: Shimano Altus M2000 Chain: Shimano 9 speed Sprocket: ...
8
votes
2answers
904 views

Rear derailleur too far out

All I did was change the rear tyre and now the rear derailleur can only access the highest 4 sprockets out of 7. I have followed Parktool videos on adjustments (including pulling the cable probably ...
0
votes
1answer
46 views

Chainstay Protector, Will it interfere with rear derailleur gear cable?

I have a chainstay protector wrapped all around the chainstay. Will this affect the rear-derailleur gear cable which on my bike is externally routed?
1
vote
1answer
69 views

Do you need to change your rear derailleur if you want to upgrade your bike from 7 to 9 speed?

Well i was thinking thats is it ok if you use your stock rear derailleur if you upgrade you cogs/sproket?
4
votes
2answers
469 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
votes
1answer
99 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
votes
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)! ...
3
votes
2answers
95 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
votes
1answer
104 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 ...
1
vote
1answer
89 views

9 speed Shimano Deore derailleur compatibility

Will a 9 speed Shimano Deore derailleur be compatible with my 13-32 tooth freewheel?
3
votes
2answers
242 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 ...
1
vote
1answer
121 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
4
votes
3answers
891 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 ...
4
votes
1answer
86 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 ...
0
votes
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 ...
2
votes
3answers
132 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). ...
1
vote
3answers
554 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 ...
1
vote
1answer
128 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
votes
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 ...
0
votes
1answer
128 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 ...
6
votes
0answers
209 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 ...
5
votes
1answer
164 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
votes
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 ...
1
vote
2answers
120 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 ...
3
votes
3answers
366 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 &...
2
votes
5answers
887 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
1answer
113 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 ...
-3
votes
1answer
70 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 ...
1
vote
1answer
81 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 ...
0
votes
2answers
42 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
102 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-...
-2
votes
1answer
92 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. ...
2
votes
4answers
221 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 ...
1
vote
2answers
562 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
vote
2answers
240 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
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
110 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
171 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
467 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
1k 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
504 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
1
vote
1answer
215 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?
0
votes
1answer
275 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?
4
votes
3answers
975 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 ...
3
votes
2answers
255 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 ...
2
votes
3answers
104 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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