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

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3
votes
1answer
238 views

What kind of lubrication is used on Electra Townie 8i chain?

I just got a new Electra Townie 8i and notice that the chain appears clean and silvery. Is it supposed to be lubricated and if so, what is recommended lubrication?
3
votes
2answers
276 views

What kind of master link is most convenient for IGH / fixie / ss setups?

Here's a question related to this and this -- I've got a IGH bike and want to keep the drivetrain clean. I prefer to remove the chain for regular maintenance, but don't want to have to remove the ...
21
votes
2answers
4k views

How to know when to change a chain?

A bike shop employee used a tool he said would check the wear on the chain, and said that it should be changed. He said it took a measurement that meant the chain had expanded, but it is still hard ...
2
votes
3answers
2k views

Chain skipping on MTB

I've had my Trek 3900 for about a year now, and I replaced the chain about 3 months ago, but otherwise it's running with the same parts it came with (not counting tubes and tires). I had to replace ...
4
votes
2answers
2k views

Chain drop under load

I have a problem. Today I was riding (flat-out) up hill, and went to shift up a gear on the rear, which caused the chain to drop off the front chain-ring (was in the big-ring, so dropped to the ...
2
votes
3answers
4k views

Why is my drivetrain so noisy after replacing the chain?

I ride an SE Lager fixed. On the 30th of May this year I did a bit of an overhaul, replacing the rear cog, chain, wheels, tyres and brake pads. I measured the chain last weekend and discovered that ...
3
votes
2answers
661 views

Squeaking sounds after lubricating the cogset and chain

My bicycle didn't produce any squeaks until the last weekend, when I decided to make a little maintenance. First, I used "Easy Clean" spray from the White Lightning brand to clean the cogset and the ...
7
votes
2answers
6k views

if I replace chainset and chain should I replace back cassette as well?

I am replacing my chainset and chain, as its totaly worn and causing the chain to jump off when I pedal. The cassette is fairly worn too, but is not causing any problems. If I buy a new chain and ...
6
votes
3answers
592 views

Should a chain be replaced even if it's not stretched?

This question suggests using a tool or ruler to assess chain stretch to determine when to replace a chain. I have one such tool (Park Tool CC-3), and it tells me that my chain is not stretched even to ...
2
votes
1answer
138 views

Which chain should I use for Rex Touring with 5 gears?

The bike is about 15 years old. The size of tyre is probably 28. I want to change the old chain. I am not sure which chain I can put to the bike. Does any chain which length is enough for 28 fit my ...
3
votes
3answers
776 views

What's the loss of effective output, with a worn chain?

I was just bought a new fine ultegra chain for 10 speed road race bike. This is actually the first new chain for this not so old bike. I am a fan of statistics, measuring power with a power unit on my ...
1
vote
2answers
802 views

4 year old alivio 8 speed rear gears - compatible chain

I need to replace my chain (for the first time). My bike is roughly 4 years old using Alivio 8 speed (24 gears) system. Looking at wiggle they seem to have 3 chains available. Looking at other ...
3
votes
1answer
219 views

Should I use an already master-linked chain or add a masterlink to a plain chain?

Trying to find moderately-priced 9-speed chain is a pain, particularly with a master/missing link already installed. I can only find PC-971 master-linked chains from US market but shipping and ...
5
votes
2answers
293 views

Chain loses tension on straight drop out

I have single speed bicycle with a straight dropout. The problem I'm having is that over the course of a week, the chain loses tension until eventually, if I do not re-position the back wheel again, ...
1
vote
1answer
308 views

Dismounting wheel in a fixie

I have a fixed gear bike, Rocky Mountain Boroughs Fixie (see picture). The chain is very tight compared to any free wheel bike. So anytime the tire gets punctured (unfortunately very often) and I want ...
5
votes
3answers
2k views

What are the advantages and disadvantages to chain wax?

I recently bought a new chain for my bike and it came full of chain wax. I was wondering if this was a better lubricant then regular chain lube, or if it had some other qualities that the manufactures ...
7
votes
3answers
8k 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 ...
11
votes
2answers
498 views

How do you evaluate and choose chain lubricants?

Terms such as wet/dry/xyz/winter/summer/autumn lubricants are not well defined. I find it very hard to determine which bottle is worth buying, spray, bottled, wax, parafin, purple, green, Y (other ...
5
votes
1answer
318 views

does my degreaser hang around and destroy my new chain lube?

I generally clip on the Park chain cleaner, fill it with a cheap department store degreaser (Rubbermaid), run it through for a few seconds, then fill the chain cleaner with water once or twice or more ...
8
votes
4answers
2k views

How to fix new chain that switches gears when pedaling backwards

I just recently replaced a chain that got incredibly beat up in the winter (it was rusted, and practically stiff when I removed it.) I removed links from the new chain to match the length of the ...
1
vote
1answer
206 views

For what kind of bike and under what riding conditions would a Biologic FreeDrive Chain Cover be suitable?

I've got a Strida 5.2 and absolutely love the greaseless experience. For ordinary chain bikes, when could a Biologic FreeDrive Chain Cover be used without causing troubles, but only provide a cleaner ...
5
votes
2answers
738 views

Are lighter chains worth the cost?

I'm replacing chains on a number of bicycles, and trying to decide what chains to purchase. I'm a fan of Sram's master links, so I'm comparing the Sram PC-971 to the PC-991. The PC-991 is ...
11
votes
1answer
924 views

Do I need to change my cassette if I can't see any wear?

I bought a new road bike with Campag Athena 11 speed in March last year. To the end of Jan it had covered 9000km. In all that time I hadn't changed the chain because I don't have the Campag tool, and ...
7
votes
2answers
1k views

How to maintain chains during touring?

I think requirements are reusable, simple, small-size and things-to-easily-to-carry. There are exotic answers with chain clearers and other things that do not qualify to me simple. Perhaps, the ...
3
votes
3answers
541 views

Which durable Chain Breaker?

I bought the cheapest chain breaker, XLC 10EUR, and its head got loose on the first try (maybe due to my poor handling or it is not well-done product). I was on the journey and had to get it so did ...
3
votes
1answer
349 views

Are all 9 speed chains compatible with all 9 speed systems?

My current chain is x9, but it's expensive in eBay. Can I use any 9 speed chain like on this page?
7
votes
1answer
1k views

If the chain/cog no longer drives the wheel, can this be fixed?

Suddenly (without anything sounding like it was broken) the chain no longer turns the back wheel. The cogged part of the wheel is turned by the chain but this doesn't turn the wheel. Is this ...
6
votes
6answers
422 views

Are there brands that sell weather-resistant chains?

I have to bike in bad weather and especially at work i have no way to store my bike in a dry place, this means that my bike chain picks up rust like nothing else, forcing me to clean it a lot. Now i'm ...
6
votes
3answers
1k 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 ...
6
votes
1answer
276 views

What is a sign that my chain needs to be lubricated again?

I just cleaned my gears, derailleurs, and chain. Lubricated the chain with Teflon dry lube. When will I need to re-lubricate again? Will I hear the chain make sounds? Do I do a visual inspection?
10
votes
3answers
2k views

Why is my chain so noisy after cleaning and lubricating?

I have recently gotten into commuting to work with a road bike. Once a month or so I will degrease, clean, and lubricate the chain. I change through all the gears to distribute the lubricant and ...
16
votes
2answers
1k views

How do I lubricate my chain?

I know I should lubricate my chain regularly. I got some lube at my LBS; how should I apply it? Do I just drip some on one spot, and turn the pedals around a few times to spread it out? Drip it all ...
5
votes
2answers
565 views

Do you need to lubricate gears after cleaning gears and chain?

I just cleaned my gears and chain with a biodegradable degreaser. I'm going to lubricate my chain. Do I also need to lubricate the gears or do I just pedal and make sure that I hit all gears? Will the ...
6
votes
2answers
88 views

What factors affect the price of a chain?

Just like most bicycle parts, chains have a pretty wide price range. What are the factors weighting in on the price of a chain ? (Other than width/bike-compatibility characteristics)
8
votes
1answer
538 views

Chain clicks when the back wheel is in highest and lowest gears

When I have my back wheel gears in either the lowest gear or highest gear, my chain clicks as I peddle. How do I fix this?
6
votes
4answers
3k views

How much distance can I put on drivetrain components?

I figure the jockey wheels on my derailer will last nearly forever, but what about the rest: cassette, chainrings, and chain? How many miles, kilometers, or furlongs do they normally last? I know ...
9
votes
2answers
2k views

Problem with chain `skipping` (but not trying to shift)

I have two bicycles that suffer this problem, both pretty heavy frames (one a ladies, Hollander bike, and the other a man's commuter) - both have correctly adjusted Derailleurs which don't produce any ...
7
votes
2answers
190 views

What considerations are important when purchasing a new chain?

Are there any special types out there or are they pretty much all the same?
6
votes
2answers
2k views

How can I keep my chain from falling off the inner chainring? (specifically, from getting stuck in the bottom bracket)

I've got a mountain bike which occasionally drops the chain off the lowest gear, and then the chain gets stuck in the bottom bracket. This happens while pedalling. Once the chain is there, it takes ...
8
votes
3answers
804 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 ...