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Questions tagged [chain]

Repairing, maintaining, or replacing the chain on your bike that connects the front of the drivetrain (cranks, chainrings) to the back (cogs, cassette).

3
votes
2answers
175 views

Can a rusty chain be saved?

I picked a girl's mountain bike out of a dumpster . It looks very excellent except for a chain that is so rusted that each link needs to worked free. Name is Techno Lite , 26" wheels, 15 speed ...
5
votes
2answers
976 views

Freshly inserted pin on a new Shimano chain causes a stiff joint

I just tried to replace my chain for the first time - Shimano, 9-speed, labeled as CN-GH53. After I inserted the special pin, the joint is somewhat more stiff compared to the other ones. On the ...
6
votes
5answers
2k views

Can I use WD40 and generic bicycle oil to maintain my MTB drivetrain?

For years I've been using WD40, a brass brush, a rag, and some generic bicycle chain oil. My chain has no visible damage, and I have no problems with it. This is for a somewhat cheap MTB that sees ...
4
votes
1answer
1k views

What brand is my chain?

It has '3f-2' stamped on the plates but I can't tell what the brand is. Thank you.
13
votes
1answer
682 views

Can’t attach master link [duplicate]

I’m trying to install a chain with a snap on master link, but I can’t figure out how. I’ve tried twisting the chain as suggested by other questions to get it into place, but that doesn’t help. How do ...
1
vote
2answers
62 views

Is a folding bike's chain more likely to slip?

I have recently purchased a Raleigh folding bike second hand. I had to take it back for servicing (within warranty) when there were problems with the gears and derailleur. The dealers have replaced ...
4
votes
1answer
842 views

Cleaning and lubing bicycle chain with diesel

For last 3 weeks I am using diesel for my cleaning and lubing my bicycle chain, so far I am not facing any problems. Should I continue this or am I damaging my chains ? Has anyone else using this ...
1
vote
2answers
75 views

KMC X9 chain: can I replace some links from any chain?

I've got some broken links in my KMC X9 chain. Is it possible to replace them with links from any 9 speed chain? Or do I need to replace the whole chain? Also, in that case can I just use any 9 speed ...
1
vote
2answers
40 views

Ultegra 2X cranks with M8000 group and 11-42t cassette?

Will an Ultegra 50/34 front crankset work with a Shimano XT M8000 Shadow+ 11 Speed Rear derailleur and 11-42t cassette?
1
vote
1answer
72 views

Truvativ 1x front chainguide - what's wrong with this?

I've been asked to inspect and fix someone's bike. Its a heavy full-suspension Kona "Stab Deluxe" downhill monster from 2006. The main fault is that the chain gets stuck between the front chainring ...
2
votes
2answers
99 views

Rotating 12-speed SRAM GX chain

I have a new mountain bike with an SRAM GX 12-speed drivetrain. I am thinking about rotating the chain to make maintenance easier and to increase the lifetime of the cassette. I would swap between two ...
1
vote
2answers
111 views

Single Speed / Fixie - Chain tension / uneven tension

I recently changed my chain and noticed it has uneven tension (probably my chain ring being out of rounds). I followed Parktool's video and set the tightest spot to have about 0.25 inch movement up ...
1
vote
2answers
63 views

What size chain for 200gs FC-M202?

This FC-M202 200gs has a label saying For NARROW chain only: So what size exactly? Wikipedia lists three sizes: 3⁄32 in (2.4 mm), 1⁄8 in (3.2 mm), 5⁄32 in (4.0 mm), or 3⁄16 in (4.8 mm) I can't ...
1
vote
1answer
61 views

Chainring and chain compatibility for Suntour chainring

just ordered a new chainring for my nexus-8 equipped longtail bike, it's a suntour 48 tooth chainring shown here: https://www.srsuntour.com/products/32-tooth-chainring?variant=27528743299 it's a ...
3
votes
1answer
315 views

Chain get stuck on front sprocket during pedalling

When pedalling the chain sometimes get stuck on the front sprocket. This happened after I cleaned the gears and replaced the chain. What could cause this? The purple line is the chain. The circles ...
0
votes
2answers
73 views

Chain tensioner (or tug) for single speed QR dirt jump bike?

Recently i have started to learn no foots on dirt jumps, but i have noticed my cranks can sometimes spin in the air leading to some dodgey situations. I believe having more tight chain would solve or ...
8
votes
4answers
972 views

Chain shortening only one link?

Is it possible to shorten or extend a chain only one link as shown in the photo (in red square). Or do I have to shorten at least two links in order for the other end to match? The reason I'm asking ...
0
votes
1answer
60 views

Wheel keeps going out of alignment and loosening the chain

I have an electric bike with internal hub gears on the rear wheel, so no derailleur. This means that for the chain to stay tight, the wheel axle needs to be dragged back into its seating before it is ...
1
vote
2answers
72 views

Chain skipping on new single speed freewheeel

I just got a Colnago Master Arabesque single speed conversion from a friend who moved abroad. It's set up as a fixie on a flip flop Hub. I flipped the wheel and installed a new single speed 1/8 ...
4
votes
1answer
270 views

How to extend a chain for a cargo bike?

I have a KMC x10e chain which is 162 links long on my Xtracycle electric cargo bike. The chain is worn and I am trying to replace it. From what I can tell it is available only in 136 links. Is the ...
6
votes
3answers
213 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 ...
0
votes
4answers
158 views

Can rusting of chain be slowed?

I have been using a silicone spray on my chain, but it isn't long before it rusts. Anything better? What about about Squirt Long Lasting Dry Chain Lube ? Thanks.
7
votes
4answers
1k views

Chain loosening over time (Fixie)

I've ridden a fixed gear bike for years now, but I've only just questioned if I have been doing something wrong when adjusting the chain. You see, I have to tension the chain (pulling the rear wheel ...
2
votes
3answers
170 views

How long can I safely use a chain for?

My chain is well over the 0.75% extension at which I would normally replace it. However, the cassette and chainrings are also old enough that a new chain would slip on them, so they would also need ...
1
vote
1answer
62 views

How long does a freewheel cog last?

4 months I asked this question when I changed my chain: What can be done wrong changing the chain in a single speed? and the solution was to change the freewheel cog. I decided to "invest" in the not ...
1
vote
3answers
160 views

What are the causes of rear derailleur chain noise?

My rear derailleur is making some noise and I'm having trouble diagnosing the cause. It seems like it's coming from the rear cogs and sounds similar to chain noise. I'm re-building my bike after an ...
1
vote
1answer
88 views

What methods to determine chain length?

I would like to know what methods there are to size chain length on a derailleur geared bike. There should be more than one answer, so there are effectively no wrong answers - don’t be shy. What are ...
1
vote
1answer
75 views

8 speed chainring with single speed 1/8" chain

Can I use a chainring designed for 6/7/8 speed with a single speed, 1/8" chain? The rear wheel only has a single cog - no derailleurs.
0
votes
2answers
106 views

My bike makes a noise from the cranks

Weird problem. My mtb makes this clicking noise at the same spot when i pedal. It sounds like its coming from the crank but if i backpedal it goes away for about 5 minutes and then comes back. Is it a ...
6
votes
2answers
340 views

Multiple master links on the same chain

Not so long ago I put a new PYC SP1101 chain on my bike, but several rides in I managed to snap the rear derailleur off, which also bent a bunch of chain links. No way I'm throwing a perfectly good, ...
2
votes
3answers
186 views

Skipping on new chain, new cassette, new derailleur

For a long time I have been having issues with chain skipping on my 1999 Trek 6500. I took a video to illustrate exactly what I mean by "skipping": Over the last ...
0
votes
2answers
119 views

Use of an alternative chain lubricant [duplicate]

What is the best chain and gear lubricant used by pro cyclists either for maintenance or for racing and how often is it recommended to apply? I have limited knowledge and so I have always simply used ...
1
vote
4answers
357 views

Cycle touring. First chain failure. Thoughts on cause?

Was pedalling up steep hill on gravel road. No gear change. Just seemed to go mid push. Was very steep and out of saddle....had to push the remainder of way! 🙈
1
vote
2answers
166 views

Sram quick link on a Shimano chain

Is it compatible to use a Sram quick link on a Shimano chain (both 11sp.)?
3
votes
1answer
40 views

Lubed Chain getting temporarily seized

I recently cleaned and lubed my chain, havent had a chance to ride it yet, but if I leave the chain alone for a day or 2, it seems to seize up. It takes a lot of effort to backpedal it free. After ...
2
votes
1answer
88 views

Constant squeaking when pedalling

My bike has had an ongoing issue for a couple of months. Most of the time I pedal there is a constant squeaking noise (which I can't pinpoint but seems to be from the chain). This noise only occurs ...
1
vote
1answer
309 views

Chain shifting when back pedaling

On my bike I found that when I backpedal, if the chain isnt perfectly straight, it is prone to shift to a more central gear. E.g would be if on the small chainring and the largest cog, backpedaling ...
23
votes
11answers
5k 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 ...
0
votes
1answer
57 views

Derailleur tension causing chain friction?

I have a foldie which recently seemed a bit harder to pedal. Specifically back pedaling seems harder than it should be (if I kick the pedal back, it barely travels a quarter or half turn. I noticed ...
1
vote
3answers
76 views

Chain slips on low and high gear and sometimes when putting some strain into it

I have been running an 8 speed cassette/freewheel, don't which cuz I never checked before it seized the other day.I was using it with a 7 speed shifter, not ideal I know but it worked OK just used 7 ...
3
votes
1answer
113 views

Shimano 3 Speed Internal Hub Gear on child bike popping chain on 3rd speed

my daughter got a S'Cool bike that's a 3 speed internal hub gear system. It works fine in the first two speeds but when it goes to third gear it makes a bit of noise - like a small "whizzing" sound ...
1
vote
4answers
220 views

Vibration and wobble after replacing chain

I'm having a bit of trouble getting my back wheel on after replacing my chain. There is a wobble once per revolution. It wobbles such that, if viewed from above, it appears to spin straight for most ...
1
vote
1answer
49 views

Gear problems on my bike

When I change the gear from 3 to 2 the gear shifter does not properly change the gear. It will just move to gear 1 then it pops off. I put the chain back but it still had the same problem.. I don't ...
6
votes
4answers
1k views

How to properly align the rear wheel to the bike (granny bike, single speed)

I have an old bike in which the rear axle is like you can see in the pictures below. It has pedal-brake. I've been struggling with the wheel alignment with respect to the bike. Each time I put it in, ...
2
votes
1answer
109 views

Chain Pops When Leaving Cogs

This problem has consumed a lot of time and resources and has yet to be solved. This is a basic Giant Iguana mtb, with a Deore rear derailleur, SRAM 950 9-sp cassette, Truvativ chainrings, Shimano ...
1
vote
1answer
551 views

Do half link chains work on any bike and what is their purpose?

Do half link chains work on any bike? What is the purpose of a half link chain? I've noticed that only BMXers and DJers use them, and that leads me to believe there is a technical reason behind ...
3
votes
1answer
135 views

Will this chain work on my bike?

I've bought the Shimano HG40 chain which is advertised as a 5,6,7 and I think 8 speed chain. I've just received it and it also says 15,18,21,24. (Obviously including the front gears). My bike is a 2x6 ...
6
votes
2answers
745 views

Chain noise, fixed gear

This is my first bike ever assembled, I’m a total newbie. I’ve just finished to put chain/cog and did my first try of chain tensioning. All components are new, but still I don’t understand why there’...
1
vote
3answers
187 views

I have changed the chain after my gauge showed that it's .75 worn. New chain jumps anyway. Why? How to deal with it?

I am riding MTBs for over 8 years and either the rules and tools to measure the chain wear do not work or I don't understand how to use them.. I have bought Canyon Exceed with 1x11 SRAM drivetrain. I ...
3
votes
1answer
167 views

Just installed a new chain but it took me 4 tries, is it safe?

I just installed a new Shimano 105 11sp chain on my bike using a park tool chain tool to put in the pin. But I screwed it up 3 times 🙄. After each time, I popped out the pin and used a new pin (ended ...