Questions tagged [derailleur-rear]

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

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1answer
37 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 ...
4
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1answer
92 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 13 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
70 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?
5
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1answer
126 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
35 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 ...
1
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1answer
97 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
65 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
112 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 ...
2
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3answers
100 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
62 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 ...
3
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1answer
156 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
61 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
67 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
74 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 ...
2
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3answers
325 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
129 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
150 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 ...
3
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2answers
129 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 ...
1
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3answers
132 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 ...
6
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4answers
524 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 ...
1
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1answer
107 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 ...
4
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2answers
252 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 ...
1
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1answer
90 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 ...
2
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2answers
184 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
131 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
82 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 ...
2
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2answers
151 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 ...
3
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2answers
219 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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1answer
134 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 ...
2
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2answers
490 views

Rear derailleur max capacity exceeded?

My MTB is a Lapierre X-Flow 512 2012. It has a Shimano RD-M980-SGS 10v rear derailleur which has a total capacity of 41t (see official specs). But it comes with a 11-36 cassette and a 24-42 crankset (...
2
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1answer
80 views

Anyone tried piggy-backing one Wolf Roadlink on top of another?

I want to get a 46t sprocket on my old 9 speed Shimano Deore derailleur. The Wolftooth Roadlink only allows for a 40t, could I double-up two Roadlinks and get that extra capacity, or...?
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3answers
571 views

Can the SRAM Rival 1 rear derailleur be used with an 11-46T cassette?

I want to put the SRAM Rival 1 group on my next bike. Somewhere I heard that the rear derailleur can handle 11-46T cassettes despite the official documentation. Is that true? Are there any limitations ...
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3answers
520 views

11t-40t/42t cassette on 3x9 system

I need your help about gear ratio. I am currently riding 3x9 drivetrain, Deore m592 rear (SGS-Shadow), Deore XT m770 front. My gear ratio is: 11t-32t (rear) and 22t-34t-44t (front). My local hills and ...
3
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2answers
2k views

Derailleur-shifters compatibility Shimano GRX

Shimano writes in the description of the Shimano GRX Shadow Plus RD-RX812 11-speed rear derailleur that it is compatible with shifters GRX ST-RX810 and ST-RX600 shift/brake levers. Should I understand ...
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1answer
389 views

Shimano Sora: switching cassette from 11-32 to 11-34

I have a Triban RC500, about 8 months old. I want to add a lower gear below 32T. Is it possible to swicth the cassette? will I need a new chain? I am not an experienced bike maintenance guy, but want ...
3
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3answers
734 views

Will brand matter between a rear derailleur and front derailleur?

I had a crash recently that destroyed my 8 speed sensah reflex rd. I replaced it with a 9 speed shimano sora for a bit of upgrade but after 4 tune ups by the mechanic its still not right. Just so ...
2
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3answers
827 views

11-speed cassette, freehub and wheel compatibility

I have two wheels and two 11 speeds cassettes. With one combination of cassettes and wheels, shifting is reliable. With the other combination, the position of the cassette relative to the derailleur ...
0
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1answer
114 views

Which replacement pulley wheels fit a Shimano RD-6400/6401?

I'm looking for replacement pulley wheels for my RD-6401. It needs to have 10 teeth and a thickness of about 7.2mm. I do have a set of Shimano 10 teeth pulley wheels in front of me (Y56398030) which ...
3
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4answers
448 views

Rear derailleur not in line with cassette

I have just installed a new rear derailleur (Shimano Acera - RD-M360-SGS), and I feel like that the pulley has a weird angle (image below). It does shift but not sure if it's healthy. Any idea what ...
0
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1answer
112 views

What thread does the b-screw on a shimano rd-6400/6401 have?

What thread does the b-screw on a shimano rd-6401 have? I need to recut the thread but am not entirely sure if it's an M4 fine pitch or something else.
2
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2answers
113 views

Can an 8 speed chain fit inside an 11 speed Shimano 105 (RD-R7000 ) rear derailleur?

I am using downtube friction shifters, I know my shifter's pull of 28.5 mm multiplied by the Shimano 105 RD's pull ratio of 1.4 gives me 40mm of travel, enough to traverse the entire width of my 35 ...
1
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2answers
306 views

XT 11 speed derailleur (RD-M8000-GS) rubbing 46T cog with b-screw all the way in?

I've broken my rear derailleur so I've decided to upgrade from my 2x10 to a 1x setup. For that, I've initially bought: Deore XT 11 speed derailleur RD-M8000-GS (I've read it can work with 10s, but ...
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0answers
46 views

Fixing up a rusty old Rallye mountain bike

I bought a Rallye mountain bike from Facebook Marketplace last year and did most of the major overhauling then as well. It was covered in mud, gunk, rust, had broken pedals, etc. So I had replaced the ...
1
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2answers
96 views

SRAM X01 Eagle 12s RD adjustment to work with 11s cassette + shifter?

I want to buy: X01 eagle 12s rear derailleur Garbaruk 11s 10-50 cassette I have: GX 11 speed gripshift KMC 11 speed chain How do you adjust the 12s rear derailleur to the shifter and cassette? ...
2
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1answer
148 views

Shimano Tourney “Rapid Rise” Rear Derailleur Installation

I'm trying to set up an old mountain bike that has a Shimano Tourney "Rapid Rise" rear derailleur which appears to operate in the opposite direction to the Shimano Acera derailleur on my own ...
1
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1answer
289 views

KMC Z7 chain for 8 speed cassete

Can I use KMC Z7 chaing (1/2 x 3/32) on 8 speed cassete Sunrace MFM-56? When I changed the old chain with KMC Z7, the smallest sprocket and the largest are fine. But in the between the shifting is ...
1
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1answer
64 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. ...
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2answers
88 views

8 speed flat bar set up with Dura Ace RD-7700 or new Claris RD-2400

I'm buying a new drivetrain (cranks, cassette, chain) for my flatbar commuter that was mostly built of parts. I currently have a Dura Ace 7700 short cage derailleur on it, I got it from a friend a ...
4
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3answers
998 views

Why rear derailer has limit on front chainring difference?

Just as an example, Shimano RD-M786-SGS (as most other RDs) specification says "Max. front difference: 22T". Why is rear derailler limited in front max difference? It is clear that it is ...
2
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1answer
248 views

Chain alignment on jockey wheel

Going over the lower jockey wheel (see first picture), my chain rubs against the inboard side of the cage and sometimes snags. It is a brand new derailleur (Shimano Acera M360) and a new derailleur ...

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