Questions tagged [derailleur-rear]

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

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6
votes
3answers
715 views

Recovery from a cycling mishap

I took my bike for the first ride of the season yesterday and unfortunately it was pretty short. As I was cycling through the rear gears I hear a plinking sound and then a large clunk. I stopped ...
0
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1answer
186 views

Adjust a Shimano 105 9x rear derailleur

Please help me (re-)adjust my .Shimano 105 9x rear derailleur of my ancient Shimano 105 3x9 gruppo. It's a RD-5501, as my research seems to support. The prequel: After working fine for many ...
1
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3answers
2k views

Squeaky noise coming from rear derailleur or jockey wheels

I have this horrible squeaky noise coming from my rear deraileur area. It only happens when I pedal. Watch below for the video.
2
votes
1answer
150 views

Very short-pull derailleurs designed specifically for 1x6 drivetrains?

EDIT: After some searching, it appears this type of derailleur is currently available in the form of folding bike derailleurs, such as the Shimano RD-FT35. It is a SIS 6/7 speed compact derailleur ...
1
vote
1answer
39 views

Jamis Commuter 4 conversion to derailleur geared

I'm trying to convert my Jamis Commuter bike with an IGH to a 10 speed derailleur setup. I've got a bit stuck on the project with the rear derailleur. Here's what I want to verify. Looking at the ...
3
votes
1answer
182 views

Bike derailleur, keeps flicking back when I pedal

I have changed the derailleur on my daughters back, bought like for like. Now fitted. When I try to pedal the derailleur, it flicks backwards and the bike won’t pedal forward, it remains stuck. ...
2
votes
1answer
159 views

Seating the rear derailleur cable housing

Unpacked road bike. Assembly is simple enough, except that the rear derailleur cable housing is not in its groove (I'm sure there is a specific term). Here is a picture. No matter how much I tug (...
1
vote
2answers
133 views

What derailleur hanger do I need for my Merida Speeder 200?

My rear derailleur hanger on my Merida Speeder 200 (2019) is slightly bent, resulting in bad shifting across the whole range. While I found an explanation on how to bend the hanger back I want to buy ...
0
votes
1answer
655 views

Changing Shimano Tiagra 12-28 cassette to 11-32

I currently have a Merida Scultura 300 which comes fitted with Shimano Tiagra 50-34 crankset and 12-28 cassette. I'm struggling up some big hills in my area and want to change to a 11-32 Tiagra ...
2
votes
1answer
663 views

Flat bar conversion - shifter is skipping a gear

I am in the middle of converting my bike with road handlebar to a flat bar. The old road bar has a Shimano 105 brake/shifter and 105 derailleur. Something like this: https://www.mec.ca/en/product/5055-...
1
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0answers
45 views

Campagnolo rear mech screw type

My limit screws' heads have gone rusty, I want to replace them for looks and to make sure they are easy to adjust on a ride. I would love hex rather than Philips heads! Does anyone know the type of ...
1
vote
3answers
109 views

My bike shifting won’t surpass 6

I own a Scott Aspect 740. On the shifter it says it is on gear 7, 8 or 9 however in reality on the rear derailleur the chain is only on 6 and won’t go past this. I’m looking for a fix as it is very ...
0
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2answers
1k views

Shimano Sora 3400 shifters with Shimano Alivio M430 rear derailleur?

I'm thinking about a touring built with just spare parts I have. I have a rear Alivio M430 9 speed derailleur and Alivio 9 speed 11-34t cassette already. I want to have drops and Sora 3400 is the ...
1
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3answers
2k views

Rear derailleur bent (not derailleur hanger)

Got a (heavy) plastic bag stuck in my rear derailleur of my <1 year old Salsa Journeyman Apex 1, the bag fully wrapped into the derailleur wheels while I was biking at about 10-15 mph. I had to ...
1
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2answers
2k views

Rear derailleur does not downshift properly, shifts up smoothly

I can't get my rear derailleur to downshift properly. Especially in the middle of the cassette it'll delay a bit before shifting. Limits are set correctly. Since I can't explain this properly I ...
3
votes
2answers
2k views

Vintage bike, new chain

I've refurbished a vintage bike and I switched the old derailleur with a new medium cage tourney derailleur, the chain is also new and is 114 links long, which should be fine since me largest cog on ...
2
votes
1answer
1k views

Derailleur mounting position

I'm adapting a derailleur to a bike by welding it onto the dropout. By looking at other bikes it seems to me there is not a very strict specification for where the derailleur hanger goes. It seems to ...
4
votes
3answers
6k views

Bearings vs. bushings in rear derailleur jockey wheels - which should be more resistant to contamination?

This question came up in a forum I frequent. As background, many of us are familiar with ball bearings, as they are used in many places on bikes: the bottom bracket, the hubs, the headset, etc. Not ...
13
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6answers
6k views

How to remove the broken ball end of a small hex key that is now stuck inside the socket

While trying to replace the yoke of my derailleur I made the mistake of using a multi-tool hex key that was not able to handle the torque necessary for the task and snapped while the head stayed ...
1
vote
2answers
644 views

Measuring chain length on a 1x12

I'm installing a Shimano 1x12 setup and following the instructions. When measuring the chain it says to put the chain around the largest sprocket and largest chainring, measure to the zero point, and ...
2
votes
2answers
225 views

Weird whistling from the rear derailleur

Shimano Deore xt, 10sp. The noise happens only when I change gears for the short period of time when the chain is moving from one sprocket to another. While pedaling on one gear it works well and ...
1
vote
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 ...
6
votes
3answers
565 views

What is going on with my derailleur?

I was on a ride a few months ago and while shifting, my chain came out of my derailleur. So this is a little confusing. Let me explain. The chain was resting on the outside of the bottom part of the ...
4
votes
2answers
948 views

Replacing Ultegra R8000 'long cage' derailleur (crash repair advice)

Today I did the unthinkable and crashed my pride and joy, a 2018 Specialized Roubaix comp. It's completely my fault I was commuting to work and in my pre caffeine state rode through what I thought was ...
1
vote
1answer
87 views

Difference betwen two rear derailleur?

What is the difference between these two rear derailleurs? On the pictures it seems, that the "rotation angle" is different. https://bike.shimano.com/en-EU/product/component/tourney.html On the ...
3
votes
3answers
219 views

Cage Length (Rear Derallieur) and Total Capacity

My drivetrain required total capacity is 14. (folding bicycle Dahon Eco C6, 14-28 rear, 1x front) The rear derailleur (Shimano TZ50, which I purchased), has total capacity = 34 and a long cage. Are ...
2
votes
1answer
875 views

What is the difference between Shimano TZ50 and Shimano RD-FT55-SS

What is the difference between Shimano TZ50 and Shimano RD-FT55-SS? Shimano RD-FT55-SS Shimano TZ50 I understand, that both of them a very basic. (But it's the only options for rear derraliuer with ...
1
vote
3answers
301 views

Sram X5 RD limit screw

A RD was recently lightly smashed in. I straightened the derailleur hanger "by hand" and now it is "good enough" with some chain rub on the cogs. I set out to readjust the rear gears but am facing the ...
1
vote
2answers
726 views

Upgrading drive train for Cannondale Trail 6

I am planning to upgrade cassette, rear derailleur, chain rings and front derailleur of 2016 Cannondale Trail 6 I am looking for 11-36 or 11-38 10 speed rear and 2 speed front. Which model I need to ...
6
votes
6answers
4k views

Should I adjust rear derailleur as my chain seems too close to each other

I am learning to replace chain and freewheel (So far so good). After I put new freewheel and new chain on, the chain are too close to each other at the back now (as you can see in the photo). I think ...
11
votes
3answers
2k views

Busted my bike hub & derailleur (I think) - how bad is it?

I screwed up :( Background leading to my foolishness: I've been straining my bike quite a bit with hills and inclimate weather, and I haven't been able to find my maintenance kit since I've moved, so ...
14
votes
6answers
13k views

Why is a derailleur guard present only on more affordable bicycles?

Looking at http://decathlon.co.uk, I see a derailleur guard only on more affordable bicycles, e.g. this one. This one does not have it, and there seems to be no obvious way to install one. Are ...
2
votes
1answer
377 views

Derailleur hanger reverse

It looks that the derailleur hanger is reverse and I've tried to check for a new one to replace and it seems to be very rare. Is there any workaround to change it with a regular hanger?
2
votes
1answer
114 views

Fuji Transonic 2.8 2016: rear derailleur hanger direct mount or standard?

I have a Fuji Transonic 2.8 from 2016 that has the following hanger installed: https://wheelsmfg.com/derailleur-hanger-215.html I am replacing the short cage Shimano 105 rear derailleur with the ...
2
votes
2answers
136 views

How is the Bikight aluminium chain tensioner installed?

Bikight tensioner Is it perhaps installed next to the wheel, in the inner part of the frame?
1
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2answers
7k views

How can I tighten a loose rear derailleur onto the derailleur hanger?

I have recently tried to install an NX Eagle derailleur on my bike, but I could not tighten it onto the hanger tight enough to firmly fix it, so that it does not rotate around the pivot. In other ...
3
votes
2answers
7k views

Nine speed derailleur on 10 speed cassette

Will combination work? I have 10 speed shifters, 10 speed chain, 10 speed cassette and all components are Shimano. The reason I ask is because I am new to cycling and I am having trouble indexing my ...
1
vote
1answer
4k views

Are Shimano jockey wheels compatible between groupsets, provided same speeds?

Recently my Shimano 105 (10 speed, RD-5700) jockey wheels have started squeaking during shifting, so they'll be getting replaced. I'm thinking about moving up to Ultegra jockey wheels for the ceramic ...
2
votes
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 ...
0
votes
1answer
190 views

Rear Shimano Acera derailleur skips chain ring after replacing cable

I've had my Schwinn High Timber F5 mountain bike for probably 15 years and decided to replace all the cables. I've also already borrowed the rear wheel from my guest bike while I figure out how to ...
1
vote
1answer
220 views

Clicking sound coming from rear

In the middle of one ride my bike started making clicking sound from the rear. And I can't find the source since that. Here is a video of it: https://photos.app.goo.gl/RZKb7C3L76TbnMVF7 As many ...
3
votes
1answer
242 views

Chain jumping, unsure why

The chain likes to jump from the front sprocket, it is my impression that it makes no difference if the chain lies on the inner or outer cogs. Since I am unsure about the root cause I ask here for ...
1
vote
2answers
349 views

Noise + vibration while back-pedalling. Should I be worried?

Recently I noticed I'm getting a bit of noise and vibration through the drivetrain if I backpedal on the largest sprocket at a reasonable speed. There is enough vibration that when I'm stopped at ...
3
votes
3answers
5k views

50/34 compact with 11-32 10-speed Shimano 105 - will 11-34 make climbing easier or change chainring

As mentioned above...I'm running a 50/34 10 speed with 11-32 cassette but would like to change to a configuration that would make climbing hill easier. I live in a hilly area so every time I cycle, ...
0
votes
1answer
107 views

Derailler clearance on ERTO 406 wheels

i have a Cannondale Hooligan I on which I plan to remove the Shimano Nexus 3spd IGH and replace it with a derailleur gear system. This bike has ETRTO 406 aka 20 inch wheels. I want to use an 11 speed ...
0
votes
0answers
35 views

Rear derailleur not shifting first time from lowest gear

I am installing new cables and trying to reconnect the rear derailleur. I can the gears indexed perfectly on the way up but when I try to shift down from the lowest gear (biggest cog) it doesn’t move ...
1
vote
2answers
562 views

Shimano Sora rear derailleur install, U-ring on bolt

I had a slight bend with my mech hanger so I took off the rear mech to get the hanger out and fixed. Now that the hanger is fixed, I noticed a U-shaped ring around the bottom of the bolt on the rear ...
2
votes
1answer
2k views

Any compatible trigger shifters for el-cheapo TD ONE derailleur?

Bought a cheap RoadMaster MTB's as a first "grown up" bikes for my daughter. For the price (~$60 in a sale) they play nicely, but it shows the poor quality of the components. The biggest gripe is the ...
1
vote
2answers
3k views

Why are my Shimano 105 11-speed shifter/derailleur acting like they're 10-speed?

I recently got a pair of Shimano 105 shifters and a rear derailleur and put them on my bike. The front derailleur is a Shimano Tiagra, and the cassette is also Shimano. The cables are new, but the ...
8
votes
3answers
6k views

Rear derailleur got caught in the spokes, what could be a root cause

I have several problems on this bike. Here are the elements that have failed and other pieces of information: the chain has derailed past the largest sprocket the rear derailleur has rotated 180 ...

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