Questions tagged [derailleur-rear]
Questions referring to the derailluer responsible for moving the chain along the cassette
555
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What does this screw do (on my bicycle)?
I was trying to adjust the "H" and "L" screws on my rear derailleur to as to adjust the gears better to a Wahoo Kickr I just set up. However I accidentally gave a turn to another, ...
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4
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Is it okay for my rear derailleur to be as "compressed" as this when in the lowest gear on the bike?
Recently replaced the cables on this old road bike. When indexing the cable I notice how compressed this derailleur is and the two cogs are almost touching - it certainly doesn't look right to my ...
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2
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Using Burley Coho XC on road bike with Magic Speed Release axle
I have purchased a Coho XC trailer to use with my 2021 Orbea Avant H-60 (disc brake) bike.
I ordered a Burley Thru-Axle after following the Burley axle guide, but on attempting to install it (without ...
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3
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Can I use a vintage derailleur adapter claw on a modern derailleur
I am restomoding a vintage Hi-C branded Schwinn road bike. There is no derailleur hanger on the drop outs so I am in need of an adapter claw. Can I remove this claw from the old derailleur or is the ...
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1
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Pulley wheel and washers - Rear derailleur
I bought a 2nd hand read derailleur (Shimano M340) and now I've realized that pulleys wheel have not the metallic cover plates(washers) that Shimano derailleurs pulley wheels always have.
What should ...
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7
votes
1
answer
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The pulley is not close enough to the largest sprocket even when b-screw is all the way out
I have a new bike with Shimano Ultegra di2 12sp and 11-34 cassette. Following Shimano's installation instruction, with largest sprocket and small chain ring, I cannot move the upper pulley close ...
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1
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How does the chain stabilizer perform its clutch function?
The chain stabilizer (blue in the sketch below; source)
consists of two parts.
The two parts are:
an outer metal part (top right of the image below), and
an inner part (bottom left of the image ...
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votes
3
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What exactly is the "clutch" doing on a Shimano M8100 rear derailleur?
My new Shimano 12s XT 8100 rear derailleur has the switch with on and off positions. From that I found on the web, it is a "clutch" and I must turn it off when removing the wheel. I can ...
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3
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2
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Do I need a Goat Link on a Triban RC520?
I would like to build a 1x road bike with low gear ration for bike touring. I went across this article about mullet drivetrain and it looks like what I want.
The Triban RC520 from Decathlon seems like ...
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Improve my hill climbing gear ratio on my Cannondale CAAD8
I own a Cannondale CAAD8 and absolutely love it. However it's not the greatest hill climber and I am considering on getting a bigger cassette to improve my ride experience on hills
The current bike ...
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3
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How to remove the pin on the lower end of the shift cable, to replace the derailleur
I need to replace the rear Shimano XT 7100 derailleur what broke in two at the base. It is attached by the single screw only but there is a metal pin fitted over the tip of the gear shifting cable. ...
- 6,247
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2
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Can a 9 speed rear derailleur be used with a 7 speed freewheel and shifters?
I know this has been asked before but wanted to make sure in case things have changed over the years. I have a brand new Deore M592 Shadow 9 Speed rear derailleur and wanted to know if I can replace ...
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3
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Rear derailleur looking abnormally contracted – What is wrong?
The derailleur is not extended. The cable tension seems ok. What could be the problem?
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3
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I need help getting a replacement grip shifter for a 9 speed rear derailleur
UPDATE: pictures of the rear derailleur at the bottom...
I have a 2003 bianchi strada that I love to pieces and works great. it is now 19 years old and I've quite worn away all of the rubber grip on ...
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2
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Derailleur hanger bent
How can I bent it back
Because its one of those the hanger is a part of the derailleur
If I want to get a new one its the whole derailleur replaced with it
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4
votes
2
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Changing front chainrings
I picked up a used 2006 Trek 520 for pretty cheap as a project bike. This bike: https://archive.trekbikes.com/us/en/2006/trek/520#/us/en/2006/trek/520/details (specs are on that page).
I took it ...
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2
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Can I put a b-link on a standard mount rear derailleur to fit my direct mount frame?
I have a 2004 Trek Navigator 200 that I'm putting together. It needs a rear derailleur. My Trek frame has a direct mount hanger on it. Do I have to have a direct mount rear derailleur or can I use a ...
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Determining the correct gear ratio for rear wheel cassette
This is a continuation from my previous topics:
determining the rear fork spacing of giant escape 2 2013
rear wheel cassette hub and speed set compatibility question
Summary: My bike's (giant escape 2,...
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Multiple gears shifted while not pedaling
It happened again, but much worse this time. Someone shifted the front derailleur from 2 to 1 and the rear derailleur from 5 to 9 without pedaling when I was in school. Does this do any significant ...
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Rear wheel cassette, hub and speed set compatibility question
My bike's rear wheel was recently stolen so I am looking to replace it with a second hand one now. However I don't have much experience/knowledge about speed gear and cassette compatibility. My bike ...
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1
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Bad chordal action in high gear
On my smallest rear gear, the chain vibrates pretty noticeably causing it to "smack around" my front derailleur. It also produces a slight clicking noise from the rear of the bike.
I've ...
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4
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1
answer
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Shimano RD-TY20 "Direct Attachment" rear derailleur mount style replacement
I have a Shimano RD-TY20 derailleur with a date code of 1989. It is mounted on a frame which is marked as 1984. This frame is made of steel, and the derailleur hanger is part of the frame.
I want to ...
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1
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7700 Dura Ace shifters with modern rear derailleur - Shifting issues
I have a 22 year old Trek 5500 with the original Dura Ace groupset. To make the shifting more knee friendly, I decided to get a 11-34T cogwheel. The old Dura Ace 9-speed rear derailleur won't handle ...
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Can I attach a Rear Derailleur to this bike?
I really want to put a six-speed free wheel on here and a rear derailleur but I don't know if this bike will accept a RD. Does anybody know if I would be able to add a hanger or if I can do a Direct ...
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Loud clunk moving to smallest sprocket
When I shift gears to the smallest sprocket it makes a very loud clunk sound. There's also a lot of movement in the chain, like a bounce. I've taken a video demonstrating this Video of clunk I'm ...
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1
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Rear derailleur compatibility for friction shifting
I have a mid-1980s road bike with downtube friction shifters. I'd like to install a freewheel with a larger cog (something like 32 or 34T), but my current rear derailleur won't accommodate that. So I'...
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votes
2
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Two locknuts and a washer (want to be sorted out)
It appears I did not sufficiently heed the first rule of disassembling something: carefully observe the order (and side) of where things come from.
Three quick questions:
The image below shows an 8mm ...
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Does the rear derailleur have a range of motion that exceeds that needed to move between the planes of the smallest and largest sprockets?
The distance between the plane of the largest sprocket and the plane of the smallest sprocket in a Sora cassette is about 34 mm.
When the rear derailleur cable is untethered, the spring in the rear ...
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3
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2
answers
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11-36 11spd Cassette with Shimano RD-M8000-GS?
I'll try to be concise here, but lots of numbers coming your way...
Currently running Shimano 1x11spd, 11-46 cassette with RD-M8000-GS rear dr. The three lowest sprockets are -32-37-46.
The derailleur ...
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3
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1
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Shimano 105 rear derailleur is very noisy on bigger cogs
my Shimano RD-5800-GS rear derailleur is very noisy on bigger cogs, especially when
being in the bigger chainring at the front. On smaller cogs it's not so bad. I had this problem with it since i ...
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2
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9 speed Shimano (shifter+derailleur) + 8 speed cassette
At the moment I have a wheel with a Shimano 8speed cassette (HG30-8I) (11-30 or 32T)
and also I have following rear derailleurs:
XTR (RD-M952) (9 sp) GS
Altus (RD-M310)(7/8 sp) SGS
Questions:
...
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2
answers
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Modify/hack rear derailleur cage size
I've listened that it is possible to modify the cage size of a rear derailleur.
For instance reducing a long (SGS) to a medium (GS) or short (SS) cage size.
Is it possible on all brands?
Just shimano?
...
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1
answer
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Shimano STx rc 8515 rd mc38 rear derailleur , what replacement jockey wheels will fit on this
As they do not make the pulley wheels for this derailleur anymore because it’s old can you please tell me what modern Shimano pulley wheel will fit this.
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Is Shimano Deore M5100 Rear derailleur compatible with Shimano 105 11-speed groupset?
I have a road bike equipped with full Shimano 105 11-speed groupset from top to bottom. The current rear derailleur is RD-5800. Is it ok to replace it with a Deore M5100 Rear derailleur, which is also ...
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2
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Can I Mix a 105 Rear Derailleur with a Sora Groupset?
Update:
It's a Sora road group set, so 9 speed on the back with 11-32t cassette, and double on the front (50-34 I think).
And I do want to add more gears if possible, so 10 speed or more if possible. ...
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2
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How can I get a lazy rear derailleur to move all the way into smallest cog position?
I have a Microshift Marvo XE rear mech, 9 speed, on a little recumbent I made. It's been a decent derailleur, but recently, when in the smallest cog (11-32 cassette back there) it does the "clunk-...
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1
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Swapping a 12 speed 11-30t to 11-34t cassette Ultegra
I currently have a 12 speed 11-30t cassette on the back and 35x52 crank upfront.
If I change to a 11-34t cassette, do I need to adjust anything? (for example RD adjustment if so, what should I adjust. ...
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4
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Are brifters meant to spin/slide on impact, by the choice of a low attachment-bolt torque?
One delicate and valuable part on a bike, the rear derailleur, is attached by a sacrificial part. The derailleur hanger is designed to be weak and to bend on impact, sparing the derailleur and the ...
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1
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Shimano GRX Hub + CS-M8000
I fitted a second (nearly identical) wheelset, and now my derailleur indexing is not working. Shifting into the last sprocket is not working, and there are a lot of gears over the range not working ...
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2
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1
answer
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A Derailleur (short, medium cage) for a 34T max. cog ring sprocket
I need suggestions from experience or a table of compatibilities in order to find a compatible rear derailleur for folding bicycles (20" and 18" wheel)
I am aware that many the 28T max cog ...
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1
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Recommendation for rear derailleur replacement for a hybrid bike
I recently broke my rear Derailleur in my Super Sport 700c SCHWINN S35408M10DSG-LG 7-speed hybrid bike. I tried the Shimano Altus MTB rear Derailleur but I don't like it as much, it feels a bit harder ...
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7
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1
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What is this metal cage covering the rear derailleur?
On my MTB: This cage like thing covering the rear derailleur was loose and was making a lot of noise when I was riding. I removed it temporarily and it seems fine to do so. Am I correct?
What is the ...
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HELP with derailleur upgrade question
I just bought this Aventon Level ebike https://electricbikereport.com/aventon-level-review/
I was wanting to upgrade the derailleur, but I'm not sure which one to get.
I don't want the entry level/...
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3
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1
answer
298
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SRAM X01 derailleur very slow to shift into two smallest cogs
I recently changed bikes and have my first SRAM derailleur. I'm relatively new to bikes (couple of years) but mechanically handy, and had no issues adjusting the Shimano XT derailleur on my last bike....
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3
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1
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How to get Rear derailleur aligned and in correct position?
I have a shimano altus rear derailleur that won't go into biggest cog for gear 1 - it is two out so in the gear 3 cog. Would it be the limit screws needing adjustment or other?
I have tried adjusting ...
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1
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New bike is making rattling noise
Brand new specialized rockhopper 2022 is making rattling noise.
Sample:
Is this normal or could it be a manufacturing defect?
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2
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Can a Shimano 7 spd rear derailleur work with a Campy Athena down tube shifter?
Late 1980s vintage Italian steel bike with Campy Athena mech (7 spd rear derailleur). Need to replace rear derailleur (because of weak spring not taking up chain slack in small ring). My thinking is ...
6
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Servicing Shimano Centeron Jockey Wheels
I'm servicing my rear derailleur jockey wheels (pulley wheels) for the first time. They have about 20,000km on them. The derailleur is a Shimano Deore LX, and the first jockey wheel I've taken apart ...
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2
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What does the cable sheathing on internally routed cables do?
Last night it became clear that a friend's rear derailleur cable was failing, and I had a spare, so we thought we'd fit it - an easy job after all. Unfortunately not - it's a Cannondale Synapse with ...
- 51k
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1
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535
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Can this combination work? SHIMANO RD M5120 with a M6000 drivetrain?
I definitely dislike the new proposals made by SHIMANO, but I have found that RD M5120 can be used in 10 or 11 speeds, it would only depend on changing the chain.
Well, my doubt arises due to the fact ...
