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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2
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5answers
2k views

What's the most useful style of chain gauge?

I see that there are three kinds of chain wear gauge: The basic kind. I'm used to using this kind: The hook style. Supposedly provides an indication of how worn the chain is. I've used these and ...
7
votes
2answers
2k views

Should I Oil A Single Speed Chain?

My question is simple. Do I need to oil a chain on a single speed bike?
8
votes
3answers
2k views

how do I paint a bicycle chain?

I've seen chains with so many colours, white, red, you name it. I would like to give it a try (this paint job is intended for visual styling of the bike, nothing related to protecting it), but I have ...
4
votes
1answer
528 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 ...
3
votes
2answers
4k views

Options for replacing a 7 speed Shimano cassette / chain

I would like to replace my 7 speed HG70 cassette and chain. My problem is that it is increasingly difficult to find quality parts for 7 speed system. My bike is a Trek 970 from 1993, originally with ...
2
votes
2answers
1k views

SRAM chain with Shimano cassette and crankset?

When new my bike had all Shimano components. When it was time to replace the chain, the LBS installed an SRAM chain. Was that a mistake on their part (if so, was it a bad mistake)? I had a problem ...
7
votes
6answers
6k views

While pedaling standing up, bike crank gives in as if shifting, what is causing this?

While standing up and pedaling, the cranks give in as if shifting. It seams like I am shifting down, but my hands are off the shifter, almost like the chain is skipping a link. I took it to a bike ...
5
votes
4answers
1k views

What causes chain suck?

Specifically when changing gears from middle chain ring to smallest, the chain will sometimes get 'sucked' up between the inner chainring and chain stay. It seems to happen more often in muddy ...
13
votes
6answers
4k views

New chain is pre-lubricated, should I clean it?

My new chain is totally coated in lube. I would never ride a bike with a chain like this normally. All that goop is just going to collect flotsam from the road and wear out the chain. Should I clean ...
4
votes
1answer
152 views

Replaced tyre and tube, now the rear gears will not stop

Just put on a tyre and innertube, fits perfectly, but now when I stop pedalling the gears at the back keep moving so the chain just sags down so much that it hits the wheel etc. Any ideas on how to ...
6
votes
7answers
15k views

Chain slipping on newish bike

I've looked at most of the answers for related questions and they all speak about replacing parts that are old. I just bought a new bike from a friend who rode the bike for about a month before ...
6
votes
5answers
2k views

How to Sight a Chain Line

I just finished building a single speed bike and I think my chain line might be a little off. Is there a tool or trick to sighting the chain line?
8
votes
2answers
3k views

What harm results from riding with a stretched chain?

Due to sheer laziness, my maintenance amounts to an annual trip to the LBS. After moving, my new LBS suggested that I replace my chain immediately, before it destroys the drive train. What they ...
6
votes
7answers
3k views

How to prevent my chain from breaking?

After my chain has broken what should I know about buying and maintaining a new chain (apart from lubing it and replacing when it 'stretches')? Do you keep a spare chain, or a spare link? I have a ...
6
votes
3answers
549 views

What am I supposed to do when my chain falls off?

It happened when I "stepped on it" (on an empty residential street). It left the chain on the road. What tool(s) and parts should I have had with me, to fix it? It was replaced (new) two months ago, ...
5
votes
2answers
1k views

How do half link chains perform for long term use?

i was wondering if there is anyone with a Rohloff hub riding half link chains for longer. OK, the hub isn't essential it's just a single speed chain, so experience from anyone who rides more than the ...
4
votes
4answers
1k views

Eliminating chainslap on a 90's Stumpjumper

I have a mountain bike - a Stumpjumper hardtail frame with a Shimano drivetrain - where I'm getting a good amount of chainslap. Before I start fiddling with stuff, I'd like to understand the problem ...
1
vote
4answers
492 views

Do Master Link pliers help with SS / fixie chain assembly?

A followup to my own question, seeking specific help. I'd like to know if anyone is using a set of "master link pliers" (something like Park's MLP-1) to help them with derailer-free chain work? I ...
1
vote
3answers
878 views

Can a greasy chain cause the chain to come off the rings?

I heard once that you should clean your chain with a light degreaser whenever it looks especially dirty or at the very least once every few months. But that doesn't account for frequency of rides or ...
3
votes
1answer
239 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
277 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 ...
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 ...
11
votes
7answers
29k views

How tight should a fixie's chain be?

I ride an SE Lager fixed. How tight should the chain be and what is the best way of measure it? I have a chain tug so I can be pretty accurate in dialling in the right amount of tension. I don't ...
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 ...
10
votes
7answers
2k views

isn't a fixie without a full chain guard a safety hazard?

Yes, I know it would totally ruin the clean lines and the uncluttered, (well maybe just a discreet front brake), looks, but I've never seen this question asked, much less answered. A chain guard ...
3
votes
2answers
673 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 ...
20
votes
7answers
5k views

How to achieve an always clean chain

My chain and cogs always look very dirty as the oil attracts dirt. It is a constant problem as you can't fully avoid stains on your trousers and hands. Also, that looks ugly and I believe it wears 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 ...
5
votes
7answers
3k views

How long should a well maintained chain last and what can I do to prolong its life?

I commute on a fixie. I'm using KMC Z410 chains. Every evening if it's wet I wipe and re-lube my chain, using ProLink lube. Every weekend I remove the chain, soak it in kero, brush it with a citrus ...
6
votes
3answers
594 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 ...
8
votes
4answers
7k views

Mysterious case: chain falling off large chainring, how to fix?

On my commuter bike I decided to rid myself of the small inner chain ring (which is almost never used) and front dérailleur (now redundant). However, I have come across an unusual problem. Whilst ...
3
votes
3answers
781 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
805 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 ...
1
vote
3answers
11k views

How to fix problem with mountain bike chain falling off gears?

The chain on my girlfriend's bike came off the front gear today, it looks like the back gear changing mechanism isn't handling back-pedaling properly, whenever she pedals backwards the chain slacks ...
1
vote
3answers
5k views

How do you connect and disconnect a quick release chain link?

I can't find any nice video or pictures tutorial that explains how to connect and disconnect a quick release chain link. Am I not finding anything because it has another more common name? How do you ...
5
votes
2answers
294 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, ...
21
votes
2answers
5k views

Does the chain direction make a difference?

Recently, I helped a friend install a new chain on her road bike, and for the first time read the instructions for installing one. It seems to claim that there's a forward direction, and that it ...
2
votes
1answer
139 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
894 views

Are chain-drive gears 'ridiculously' efficient even when dry of oil?

Allegedly chain-drive gears are something like 99% efficient when well oiled and something like 98% efficient when without oil. Personally I do not like the noise a dry chain makes, this has a 'I ...
1
vote
1answer
311 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
6answers
17k 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 ...
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 ...
5
votes
8answers
7k views

Should you use GT85 on your chain?

I've been told by various sources that WD40 is bad for your chain so have avoided using it. I've seen people using GT85 on their chains but I'm not really sure how the two products differ. So my ...
6
votes
3answers
19k views

How many chain links do I need?

Looking for chains at ebay, I see, that they have 106, 114, 116 links and so on. I have a racing bike (2x7) and see, that chains are often announced as 6-7-8-speed, 10-speed, 11-speed. Since there ...
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 ...
13
votes
3answers
419 views

Will regular removal, cleaning and re-placing of my chain weaken or damage it?

When I'm cleaning my bike, the quickest way to degrease my chain is to remove it and degrease it in a small tub. Will constant removal / re-adding to the bike cause damage? I don't have a quick ...
1
vote
1answer
207 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 ...
20
votes
4answers
98k views

How can I tell which size chain my bike uses?

After learning how to break a chain and reattach it, and also how to add and remove a master link, I find that I can now do much more in the way of maintenance at home. I'll no longer need to bring my ...