All Questions
Tagged with derailleur chain
93 questions
26
votes
11
answers
9k
views
Are there real-life alternatives to the chain+derailleur combo?
I was reading an article about the CeramicSpeed’s Driven concept and, while not interested in the efficiency part, the chainless system reminded me of something I was wondering for some time: are ...
- 1,135
18
votes
2
answers
57k
views
Chain slipping off derailleur jockey
Last week, I had to abandon a training ride due to my chain slipping off my rear derailleur jockey wheel. This would only happen when shifting, and most often when either shifting chainrings or ...
- 8,619
15
votes
3
answers
9k
views
How efficient is string bike? Is this really a revolutionary bike?
Bicycles are getting evolved with good technologies or methodologies as the period changes. Now, this one bike, so called string bike has been introduced, which doesn't have chain, derailleur but ...
- 317
14
votes
6
answers
6k
views
Mechanic says not to use top three/bottom two gears or the chain will throw
I just bought a BTwin Fit 5, all stock, fresh from the distributor, Decathlon. Took it for light pacing at the store and things seemed OK. About 100 metres out the door, I shift up to the top end of ...
12
votes
2
answers
23k
views
Moving from Shimano 9- to Shimano 10- speed
I'm thinking of changing the 9-speed Tiagra rear mech on one of my (road) bikes to something, still Shimano, but 10-speed.
The obvious replacements I'll need are cassette, right-shifter and chain. But ...
- 9,773
11
votes
3
answers
26k
views
Apart from the size, is there any difference between chains for derailleurs or for single-speed / internally geared hubs?
I might need to replace my bicycle chain (see this question). The store where I've bought components before (cyclecomponents.com) seems to be entirely marketed to derailleurs, and I have an internally ...
- 3,987
10
votes
3
answers
66k
views
Is my chain too long?
I'm in the process of setting up a new drive train. When using the smaller chainring and smallest sprocket (hence least amount of utilized chain), the chain brushes up against the bottom of the ...
user1480
9
votes
5
answers
2k
views
I failed to replace my chain at the proper interval. Will I have to replace my whole drivetrain?
My bicycle is a 2012 Specialized Secteur. It has 6000 miles (10000 km), and I have never replaced the chain.
I recently began noticing that the chain always seems out of alignment with the rear ...
- 173
9
votes
2
answers
2k
views
Simultaneous clang, hesitation and drop when I pedal with any weight
Background: New chain, new bottom bracket, new front derailleur, new shifters, new brakes.
This is a cheap Walmart Mongoose that I'm trying to keep riding and upgraded some of the components recently, ...
- 91
9
votes
7
answers
77k
views
Problem with chain skipping without trying to shift (even with new chain and gears)
I have a mountain bike where the chain intermittently skips when put under load on the middle (and very rarely on the smallest) chain ring. It is not related to shifting.
I've taken several steps to ...
- 221
8
votes
1
answer
2k
views
Chain is loose and rubs the upper part of the chain stay
I noticed that my bike's chain is rubbing the chain stay when I use the lower gears.
The bike is new; I'm wondering what the problem is.
- 247
8
votes
4
answers
8k
views
Chain cassette noise
Hello fellow cyclists,
I just bought a new Home Trainer that has a Shimano 105 Cassette.
My Bike has an Ultegra drivetrain with less than 600km (375mi).
I have checked the wear of the chain which ...
- 91
8
votes
3
answers
3k
views
How tight should my chain be?
I recently put new tires on my bike, and in so doing, removed and replaced the wheels. It seems that now my chain has more slack in it than before, and if I pedal backwards while in the smaller cog ...
- 453
7
votes
3
answers
4k
views
Chain with master link / quick connect link doesn't clear rear derailleur
Bought a chain with a master link (packaging said quick connect link), it looks just like this:
This bit however won't fit cleanly through my derailleur, it snags on the wall right as it goes onto ...
- 483
7
votes
3
answers
388
views
Chain Links remain raised (i.e. sticky link)
I was trying to adjust my rear derailleur but I heard a noise. I found that when the chain went through the pulleys one link of the chain stayed up and made a noise.
How do I fix this?
7
votes
3
answers
2k
views
Single speed conversion chain keeps derailing rear cog under load?
The chain on my SS mt bike keeps coming off the rear cog under load (like when I hit a steep hill) it will hold right after it's tightened but after a few hills it starts coming off non-stop. Talked ...
Serda
7
votes
1
answer
304
views
Why do some people leave the chain sitting on the smaller sprocket when the bike is not used for a while?
I guess it is something related to the springs in the derailleur. But is it that important?
- 357
6
votes
2
answers
3k
views
What can cause the chain to stay attached to chain-ring at bottom causing it to ride up and jam in the frame ("chainsuck")?
I'm looking for possible/likely causes of an issue with my front chain-rings on my bike. It's a 3x8 setup and the problem is worst on the smallest front chain-ring, and worse again when combining ...
- 375
6
votes
2
answers
2k
views
What are the long-term effect of riding with a chain that's too short?
I bought my bike late November 2017, and have been riding it with the same chain ever since. I've only done very light riding with the longest rides I've ever done amounting to 60km. Last week, I took ...
- 397
6
votes
4
answers
2k
views
Advice needed to upgrade my groupset to make climbing easier
I have a Canyon Ultimate CF SL 8.0 Ultegra Di2 2020 with a rear 11/30 cassette and a 52/36 chain ring. It has a short cage rear derailleur (Ultegra Di2 R8050 SS short cage). I do long distance cycling ...
- 61
6
votes
3
answers
11k
views
Cannot shift to lowest gear - chain too short?
I’m in the process of switching from an 11-25 to 11-32 rear cassette. The upgrade has involved replacing the cassette, rear derailleur (short to medium cage) and fitting a new chain.
I can cleanly ...
- 61
6
votes
1
answer
2k
views
Is my front derailleur angled straight?
I am attempting to adjust my front gears and have also been following a video to adjust the high/low position of my front derailleur.
The issue I am having is that the low adjustment is no where near ...
- 865
5
votes
4
answers
5k
views
Shimano 105 R7000 drivetrain makes crackling sound
I got an Shimano R7000 groupset and have the following problem:
After degreasing my chainrings (54 – 36) and the cassette (28 – 11), the drivetrain makes normal noise. However after around 30km, the ...
- 295
5
votes
3
answers
5k
views
Replacing the front derailleur: unlink the chain?
If I want to replace the front derailleur on an already set up bicycle (replace SRAM Apex with SRAM Force), do I have to unlink and relink the chain on order to thread it through the FD cage? Or can I ...
4
votes
1
answer
3k
views
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?
- 51
4
votes
2
answers
1k
views
I want to covert my bike from a 7 to 9 speed. I have a Shimano 600 derailleur. Will this work or what would you advise as affordable upgrade?
I want to covert my 7 speed to 9. Currently I have a Shimano 600 derailleur. What parts do I need to make this work?
- 41
3
votes
2
answers
909
views
Derailleur and back wheel alignment issues
I've got a very old used bike. It has a bunch of issues I'm trying to fix at once: the derailleur is not keeping the chain tight only in certain gears, the back wheel wobbles slightly and over time ...
- 31
3
votes
2
answers
952
views
Is it possible to move my rear derailleur so that it does not touch the chain?
My chain is touching part of the rear derailleur. Is it possible to move the derailleur so the chain does not touch it?
3
votes
5
answers
43k
views
Why does my chain slip off the chainring when cruising or back pedalling?
My bike is a little more then a year old (although I do put a lot of miles on it, about 12 miles a day), this problem seems to have started about a week ago. It's a 7 speed Avilon Next (a cheap brand ...
- 31
3
votes
4
answers
30k
views
Replaced chain, bike makes grinding noise?
Recently, I started going to a community bike shop to learn how to maintain and service my own bike.
Ever since I changed the old, worn-out chain to a new chain with a master link, I've been ...
- 131
3
votes
3
answers
1k
views
9 speed chain on 8 speed derailers to reduce chain rub
I'm getting some chain rub on the hardest gear in the front and 2 hardest gears in the back where the chain hits the front derailer cage outer side. When I spin the pedal it seems like the chain is ...
- 1,817
3
votes
1
answer
8k
views
9 speed derailleur on 7 speed cassette?
I currently have a 7 speed cassette, 7 speed derailleur and 7 speed shifter from Shimano. Unfortunately, my rear derailleur (Shimano Tourney) broke, so I want to replace it with something better. The ...
- 41
3
votes
2
answers
140
views
Replaced chain, now the chain falls onto the small chaining
I rode for a little while longer then I should have with my old chain, so I replaced the old chain and cassette. But now when I ride in the big ring, the drivetrain makes a horrible sound and the ...
- 31
3
votes
1
answer
1k
views
Adjust deraillers after changing chain?
I just changed the chain on my Cube Acid 2X11sp mtb. I replaced the old chain with an exactly similar brand, model and length new chain (shimano). Is it NECESSARY to readjust and finetune the speed ...
- 589
3
votes
1
answer
2k
views
Chain falls off upper pulley when backpedalling
I just found out that indexed shifters required mated cassettes, and I am using the rear wheel and cassette from an indexed setup with a non-indexed rear derailleur. I noticed backpedalling sometimes ...
- 33
3
votes
1
answer
7k
views
Brand New bike, chain slips into spokes on first gear
I just bought my first bike as an adult with the intents of biking to work. This bike is brand new, is the Schwinn Admiral 700c from Walmart. I get it home and whenever I shift into first gear the ...
- 133
3
votes
1
answer
684
views
How to change front gearing
So I have a bicycle that has a single front gear, but many back gears with a derailleur. I am wondering if I change the size of the front gear (like significantly), meaning if I get a bigger front ...
- 195
3
votes
2
answers
531
views
Chain repeatedly tries to click into place without gear change
While pedalling, every 10 seconds or so, the chain on my bike makes the sound it makes during a gear shift - it "clicks", as if it's clicking into place in the new gear. But there is no gear shift ...
- 151
3
votes
2
answers
8k
views
Bottom jockey wheel on rear derailleur keeps skipping chain
Basically the angle between the bottom and top wheels is too great causing the chain to skip to the outside of the bottom wheel under force. If I use the higher adjustment screw on the shimano ...
- 31
3
votes
1
answer
166
views
Will I snap my derailleur? (too large front chainwheel)
I have an old racer (1994 Specialized Epic Allez - lugged carbon) that's in pretty good shape. I brought it to an LBS that's got a pretty good reputation and that I've used before, to change the chain ...
- 639
3
votes
2
answers
211
views
Front derailleur struggles to shift to smallest chainring, when it eventually shifts, the chain goes too far and falls out
So i am trying to adjust the front derailleur limit screws and cable tension, but i can't get it to shift smoothly. It is struggling to shift the chain to the smallest ring, especially under torque, ...
3
votes
1
answer
3k
views
Is an Acera cassette compatible with an 8-speed Deore rear derailleur?
Is this Shimano Acera 8-speed cassette and chain compatible with a Shimano Deore 8-speed rear derailleur on my mountain bike?
- 31
3
votes
1
answer
701
views
Squeaky coasting and back pedal
I recently bought a bike overseas rather than at LBS (no LBS had the type of bike I wanted). Now the bike makes a strange noise and I can't bring it in for servicing (buy from LBS when you can!). ...
- 53
3
votes
2
answers
744
views
Is wear on this derailleur pic normal?
I have had issues with noisey drivetrain and inconsistent shifting despite indexing adjustment.
I have found wear on the top jockey wheel cage, is this normal or should the chain not rub here?
Does ...
- 31
3
votes
2
answers
1k
views
Derailleur twitching in low gears
I had a mild spill today on my new bike, which put the (Tiagra) derailleur cage a little bit out of line. With some bending and eyeballing, I got the two jockey wheels lined up 'almost' perfectly ...
- 258
3
votes
1
answer
2k
views
Chain skipping on upper pulley of rear derailleur
Background: I have a full suspension mountain bike with SRAM GX Eagle components. I snapped my chain recently, and replaced it with a new one of the same model. Made sure to size it the same as the ...
- 31
3
votes
1
answer
2k
views
Chain guards for front derailleurs: Metal alternative to SKS chainboard?
Can anyone recommend an aftermarket, front-derailleur-compatible chainguard (along the lines of the SKS chainboard) that's not made of plastic? Maybe something like the one on the Marin Bridgeway ...
- 131
2
votes
2
answers
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 ...
- 31
2
votes
2
answers
2k
views
Is it normal that my front derauiller and chain rub when I take my bike off my trainer?
I have a direct drive trainer and the directions say when taking the bike on and off the bike to take shift the bike into the hardest gearing (cross chaining even). This is the smallest cog in the ...
- 177
2
votes
3
answers
846
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 ...
- 163