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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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 ...
4
votes
1answer
282 views

Rotating 2 chains on one cassete

I clean my chain on the bicycle, mostly because taking it off for a bath, drying, etc seems to take more time than I have. But maybe I could use 2 chains in rotation, I would take one chain off, ...
4
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2answers
1k views

how do you make a chain longer with a simple chain breaker?

I was replacing a chain and managed to cut the chain too short. Is it possible to make the chain longer using a simple chain breaker? If so, how?
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1answer
537 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 ...
4
votes
4answers
276 views

Chain slipping off a non geared bike

I have a normal ranger bike without gears, I've had this bike for quite a while now, been 8 years. But recently it's chain has started slipping off. I have maintained it well, changed the chain a ...
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3answers
1k views

Is a self cleaning lube enough for chain maintenance?

I've been trying to figure out what I should use when cleaning my bicycle chain. When I first purchased my bike, I knew I needed to lube my chain when i did regular maintenance. I purchased some ...
4
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1answer
1k views

Why does my chain keep jumping off the front chainring on my 1x9?

My chain has a tendency to frequently jump off the front chainring. I have a 1x9 so it's not a front derailleur issue. It generally happens when I hit something like the lip of a driveway or sidewalk ...
4
votes
1answer
154 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 ...
4
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1answer
2k views

Formula to calculate Single Speed Chain Length from Chainring Size, Cog Size, and Chainstay Length

I've seen formulas to calculate chain length for multi-speed bikes, but I need something for single speed. Example: 42T Chainring 17T Cog 406mm (16") Chainstay Length The answer in this case should ...
4
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1answer
4k views

Are there any disadvantages to running a stainless steel bike chain?

We are currently using KMC Z51RB rust resistant chains on our bikes, a competitor has started to use stainless steel chains. Does anyone know the advantages and disadvantages of using stainless steel ...
4
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1answer
190 views

Are Campagnolo and Shimano 11 speed chains interchangeable?

I have an Athena 11 speed group set, but can get a good deal on the Shimano 9000 chain. Does anyone know of any reports of issues combining the two?
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2answers
199 views

Help with cassette, worn or not?

I have done exactly 2879 km on my cassette, and currently I got myself a new chain which is a third for this cassette. With first chain I made 1985km, but I already noticed a significant degradation ...
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2answers
1k views

My chain appears to be squeaking when I ride it forward but not backwards

At first I thought I just needed to lubricate my chain, so I degreased it and just re-lubed it very thoroughly. It's still squeaking. I thought it could maybe be a derailleur pulley issue, but I ...
4
votes
1answer
2k views

What would be the “definitive” formula to calculate chainstay length from sprocket size, chainring size and number of chain links?

Before I started to write this answer, I thoroughly read this question, its answers and comments: How do I calculate the diameter of a chainring from the number of teeth? So, my question tries to ...
4
votes
3answers
566 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 ...
4
votes
1answer
273 views

What went wrong with my bottom bracket spindle length calculation?

Here's the facts: My bike frame requires a 70 mm Italian threaded bottom bracket I'm going to use a Nuvinci N360 IGH which requires a chainline of 49 (± 0.5) mm. I have Andel fluted cranks, which ...
4
votes
1answer
716 views

Why is 2nd largest rear cog making clicking noise?

I have constant clicking noise from the 2nd largest rear cog on my cycle. It starts as soon as I shift into the 2nd gear either from 1st or 3rd gear. I have checked the following things - 1. Cable ...
3
votes
5answers
964 views

Properties with Belt-driven Chains?

This reply about belt-driven belt got my interest here. It does not need lubrication at all according to the replier. What are other properties with belt-drive chain? Where does the idea come from? ...
3
votes
5answers
886 views

Are single-speed bikes better equipped to handle cog/chain wear?

I need to decide between a single-speed and multiple-speed bike. I usually ride multiple-speed mountain/city bikes in the highest gear anyway (around town). They're not intended for that, and doing ...
3
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7answers
1k views

What are the benefits of nickel-plated chains?

Bicycle chains with higher model numbers (and slightly higher prices) are often nickel-plated or half-nickel-plated. What are the benefits of nickel-plated chains over non-nickel-plated chains? How ...
3
votes
3answers
825 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 ...
3
votes
1answer
112 views

Decoding Chain Descriptions

When you see chains advertised, they are specifically noted to be for 11-speed or 10-speed bikes or something similar. Does this mean the they are for bikes with any front cog configuration but only ...
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4answers
3k views

Replacing Crankset. Do I need to replace chain? Then do I need to replace cassette?

Over the past year, my road bike's crankset has gotten pretty bent up and out of wack. Not due to abuse, just wear and tear I guess. It's pretty bent and has a nice wobble that I can see as I look ...
3
votes
3answers
905 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 ...
3
votes
1answer
361 views

Should I remove the chain before installing new rear derailleur?

I want to put a new Sram X7 instead of killed one, should I open the chain (if I have no chain lock) or it's better to open the derailleur?
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1answer
112 views

Chain Splitter vs. Chain Tool vs. Chain Breaker

What is the difference between a Chain Splitter and a Chain Tool and a Chain Breaker? Are they the same thing?
3
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2answers
269 views

When going up hills, my gears drop 2 to 3 slots. Is this my cable tension?

I own an old bike, with the old style gear shifters (levers). I have been trying to get the cable tension right. However, it seems to be getting worse. Whenever I am on a slight incline or just in a ...
3
votes
1answer
116 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 ...
3
votes
1answer
96 views

Rear wheel at edge of dropouts on a Surly Cross Check

The rear wheel on my Surly Cross Check is right at the edge of the rear dropout but the chain is tensioned correctly. If I move the wheel back into the dropout so it is comfortably in the middle, I ...
3
votes
2answers
510 views

Can you use Shimano 11 speed chain pins on a 10 speed chain?

I want to purchase a spare pin for my Shimano Ultegra 10 speed chain. Looking around I can only see 11 speed pins for sale. Can I put these into a 10 speed chain?
3
votes
1answer
256 views

What chain is this?

I have a Viking Torino 21 speed road bike. The bike has Shimano Sora derailleurs. The chain is in need of replacing but I don't know what chain to buy. Here is a photo I have taken of the current ...
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 ...
3
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2answers
701 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 ...
3
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4answers
262 views

Will an 1/8' chain and cogs wear slower than 3/32' chain and cogs for single speed / fixed gear setup?

Will an 1/8" chain and cogs wear slower than 3/32" chain and cogs for single speed / fixed gear setup? What about using an 1/8' chain mismatched on 3/32" chainring and cogs?
3
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3answers
1k views

Why is my chain riding up and skipping teeth on the freewheel?

Due to a number of reasons, I would like to keep my freewheel at all costs (It's a Sachs freewheel, the bike has all sorts of more 'vintage' components, and they're hard to come by). From reading all ...
3
votes
1answer
221 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 ...
3
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1answer
449 views

Can a 10-speed chain be used with a 9-speed cassette?

I have an extra 10-speed chain I would like to use with a 9-speed cassette on my mountain bike. Will this combination work ok?
3
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2answers
277 views

Cold weather chain lube?

My Rock N Roll Gold bike lube seems to get solid or gelatenous when stored on my unheated, but enclosed porch at colder temperatures. Is a chain lubricated with this product still going to be ...
3
votes
1answer
201 views

Checking fixie for damage

This morning during my morning commute I had an unintended lesson in fixie skidding: I dropped the chain, it got stuck between the cog and the hub and locked the wheel. I'm not sure where that skill ...
3
votes
1answer
242 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 ...
3
votes
1answer
365 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?
3
votes
1answer
2k views

How to remove a Shimano Quick-Link?

I'm currently repurposing an old frame and replacing the drivetrain. If possible I'd keep the old 7 speed drive train the bike had together in case I ever find a use for it. The chain is an HG40 ...
3
votes
1answer
346 views

smallest cog of cassette rubbing on seatstay

I built up a NOS late 90s steel frame with a similar era Campagnolo Chorus 9 speed groupset. Has gone well, except the stays/dropouts don't seem to quite like a 9 speed cassette. The second smallest ...
3
votes
2answers
2k views

Can a 10-speed mountain bike chain be used on a 10-speed road bike?

I would like to use a Shimano Deore XT Chain CN-HG94 on my road bike. Are there any differences between roadbike chains versus mountain bike chains that prohibit this? Sample Road Bike Chains: Dura ...
3
votes
0answers
89 views

Chain falling off inner chain ring no matter how L screw is set

Bike is a relatively new Cannondale Carbon Synapse with the Ultegra 6800 groupset (although front chainrings are FSA). Has about 1000KMs on it. Bike has been great, but I went out on a ride today ...
2
votes
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 ...
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 ...
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2answers
4k views

How do I figure out which size chain my fixed gear bike has

My fixed gear bike is going to want a new chain soon, how do I figure out which width I should use?
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4answers
265 views

What is causing phantom shifting on front chainring?

I have a steel cyclocross bike which doubles as my weekend bike and my daily commuter. About a month ago I got in a wreck and bent the rear derailleur hanger and the rear derailleur. Got the hanger ...