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
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1answer
239 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
votes
1answer
61 views

Odd metallic chafing sound

I bought a second hand road bike recently, I'm quite new to the field. I had a wet'ish ride and ever since getting a little bit of mud on my bike there's a metallic chaffing sound whenever I apply ...
3
votes
2answers
128 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 ...
3
votes
3answers
234 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 ...
3
votes
1answer
686 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
votes
1answer
218 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
2answers
546 views

What is causing noise/vibration high power input on right hand (drive side) crank?

I am getting a repetitive grinding sound/slight vibration while fully mashing on my Kona-humu single speed. Description of Problem This grinding is more similar to what you would hear from an ...
3
votes
1answer
264 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
308 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
417 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
494 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
3k 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 ...
2
votes
6answers
190 views

Why bother changing a chain?

I have heard often that you should replace a worn chain, that a chain lasts somewhere between 800-1200 miles, and that if you don't replace the chain on time, you'll need to replace the cassette when ...
2
votes
4answers
89 views

Chain link jams after reassembling the rivet [duplicate]

I bought a chain riveting tool. Here is how it looks like: It works fine, I was able to push the rivet out of a test chain. But faced an unexpected difficulty: after I restore the rivet to it's ...
2
votes
4answers
578 views

What should I look for when buying chain lube / lubricant?

In the past, I personally have only used WD-40. However, I have occasionally had my bicycle looked over at the locally run, free service sessions and most of the mechanics there use a hand applied ...
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 ...
2
votes
1answer
246 views

What's the logic behind this chain length estimation method?

I know of several methods of sizing a chain for a bike: As many links as the previous chain. Small-small. The RD should be barely expanded, the chain nearly rubbing against itself roller-cogs. The ...
2
votes
2answers
5k 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?
2
votes
4answers
275 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 ...
2
votes
1answer
198 views

How dirty should the chain and the cogs be before I should consider cleaning them?

I'm new to bicycling and have been riding for a month or so. I just saw a few questions here regarding cleaning of the chain and thought "whoa, I should clean the chain". How dirty (visually) should ...
2
votes
1answer
96 views

when does a 1/8" chain need replacing?

I use a Park Tool device to check for stretch on my derailleured bikes - can the same tool be usefully deployed on a 1/8" 'track' chain, does anyone know? If not, how then to check for wear?
2
votes
2answers
2k views

my chain is skipping on my single speed

The chain keeps wanting to load towards the right hand side of the cog no matter how I orientate the chain. This causes painful skipping. Do the marks have anything to do with it? I have a ...
2
votes
1answer
94 views

Lots of chain slack… Time for a new chain? Bad derailluer?

I got home from a short ride up the street today where there was a lot of clicking and skipping of chain links and when I got home I realized my chain had a ton of slack. After looking around on the ...
2
votes
1answer
175 views

New Chain and Cassette - If I am not racing does it matter?

I need to replace my chain and cassette and I am not sure what "level" I need to pick? I have SRAM RED and have never replaced my cassette or chain (Two years) I had brought my bike in for a tune up ...
2
votes
2answers
205 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 ...
2
votes
2answers
179 views

Suitable remedy for chain damaged by bike shop

I've got a fairly old Dawes Discovery 301 (not sure of the year); earlier today I took it to a shop to have a replacement bottom bracket fitted. I rode it 2 miles home, and noticed a slight ...
2
votes
2answers
2k views

Can you use a SRAM 10-speed Powerlock with a Shimano chain/drivetrain?

I just bought a pair of SRAM Powerlocks for 10-speed chains. The packaging says that they can only be used with SRAM chains. Will anything nasty happen if I use it with a Shimano chain and cassette?
2
votes
2answers
132 views

Is there any reason to keep original drive-train components together until they can all be replaced?

I broke the master link in my chain a while ago and my LSB told me it was because I wasn't cleaning/lubricating my chain often enough. The chain had experienced more wear than it should have as a ...
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 ...
2
votes
1answer
126 views

How do I tell if a loose chain is because of the chain or the ring wearing?

My chain looks as though it's 'stretched' - by the time it's fed around the large front chainring it appears to be 'longer' than when on the other chainrings. Therefore I'm trying to work out whether ...
2
votes
4answers
535 views

Chain replaced but bottom jockey wheel “jumps”?

I have a 10speed MTB and replace the chain using a powerlink. Now the bottom pulley wheel makes like a jumping kind of movement. It is not smooth. Also when in my small ring in front I get chain ...
2
votes
2answers
795 views

Which master links for 1/8 inch aka BMX chains?

It was very easy to find master links for 3/32inch (aka 9-speed chain) but I cannot find them for 1/8 inch (aka BMX chain). My chain is the Nexus CN-NX10. Cannot understand the odd observation that ...
2
votes
1answer
98 views

Bike chain too long?

Recently, my road bike's chain got cut, so i took it for replacement. A new chain was inserted and the shifting had a good transition. However, when i shift on the harder gears, i hear "crack crack ...
2
votes
1answer
114 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 ...
2
votes
1answer
534 views

Using non-Shimano link with Shimano chain?

I know the official answer from Shimano is you can only use their quick link, but practically is it okay to use SRAM or KMC links? Specifically, I have the Shimano HG-40 chain.
2
votes
3answers
535 views

Chain skipping on new freewheel and chain setup - What went wrong?

BACKGROUND NOTE: The bike is a 1992 Univega MTB that originally came with 6-speed SIS with a triple chainring. I removed the SIS shifter when it broke, and went with a friction shifter. The bike is ...
2
votes
1answer
110 views

how to fix gear ring that over-jumps

I am pretty new here, and I am not acknowledged with the bicycle terminology in English, so this topic might be a duplicate. Sorry in advance. So, when I put more pressure while pedaling, the chain ...
2
votes
2answers
193 views

Had the front derailleur adjusted, now it feels like the rear is skipping

Here is the short version. I'm all for adding more once I know what that more is to help answer said question. I work on the road. I take my Felt ZW75 ...
2
votes
2answers
1k views

How to break reinforced Shimano pin?

Sorry if my technical English is a bit imprecise. I just put on new Shimano CN-HG53 chain. I joined the ends not with regular pin, but with provided reinforced one (like one of those below). The ...
2
votes
1answer
500 views

stiff gears and chain coming off while pedalling forward (hub gear)

So I recently replaced the back wheel's tyre on my bike. Got it all fitted back on again, and the chain and everything are in place as they should be. However, changing up gears has become very stiff ...
2
votes
1answer
148 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 ...
2
votes
2answers
138 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 ...
2
votes
2answers
483 views

Can I use a SRAM PC850 chain on a 6-speed bike?

I want to buy a chain for a 6-speed bike. I know SRAM chains have the special link, meaning that no tools are needed. I've seen a very good deal on the SRAM PC850 chain, but their website lists this ...
2
votes
1answer
481 views

Are these chainrings the reason my chain skips/hops?

When I ride my bike normally, then chain skips like crazy. I know it skips in the front because I stuck some paper in the chain to see if it moved and it didn't. Chainrings:
2
votes
1answer
953 views

Better 7-speed chain for Trek Allant?

Bought a Trek Allant for cycling to work (ca 10 miles). Now, after exact 512 miles the chain is worn out and starts damaging the cassette and chainset. Cheap crap material! Is there anything out there ...
2
votes
3answers
5k 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 ...
2
votes
0answers
215 views

Chain drops in smallest gear under load

I'm baffled. I installed a new chain, cassette, cables and housing yesterday. On the stand, all is happy and shifting is silky smooth. On the road all seems happy except on the bigger cogs in back (in ...
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vote
4answers
3k views

Can I use gear oil on my chain?

I don't have any chain oil right now, but I have some gear oil left over from working on my car. Would it be an effective chain lubricant? It's listed as 80W90, but reading the Wikipedia article ...
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vote
4answers
2k views

Alternative Chain Grease/Lube

Can I use this general-purpose lithium grease on my chain until I can get some Finish Line lube? Thanks in advance.