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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1answer
536 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
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1answer
967 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
6k 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
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1answer
564 views

Chain vs chainless options

Could someone provide a comparison between having a bike with a chain, with a shaft drive and with a belt drive like the Gates Carbon Drive? It could be good to know who fares better in terms of low ...
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4answers
4k 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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4answers
3k 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.
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1answer
3k views

What Are the Widths of Shimano 8, 9, and 10 Speed Cassettes?

I was hoping that someone could provide me with the precise Shimano road-bike 8, 9, and 10 speed sizes for the following: Cassette Spacer Width Cog/Tooth Width Maximum Chain Width
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5answers
273 views

Adjusting gear ratio

I currently ride a single-speed converted bike (vertical drop-outs). I like the ride but feel that when I'm going for high speed on the road, I'm pedaling too much. Currently running a 18T cog on the ...
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2answers
92 views

What does usually worn first, the chain or the cog?

I have an old bicycle that I would like to repair. Basically the chain is always "clicking/jumping" when I pedal. I know this is either a worn chain or cog. My question is what worns first? If it's ...
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3answers
510 views

Chain really quite stretched, should I change cassette at the same time?

I measured my chain last night - 10 links were 25.8-25.9 cm. So I ordered a new one, tools and spare link pins (Shimano 8-speed HG). I'm thinking this amount of wear might explain why my least ...
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2answers
308 views

slow bike…is it the chain?

I have two Specialized Langster (one brand new 2013 model (54 cm) and the other a couple of years old unique London model (52 cm)) - both are single speed. Got sick of getting punctures on my daily ...
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3answers
1k 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 ...
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1answer
277 views

Bought new chain. Do I have to remove links?

I have this bike I got it from wal-mart many years ago. Same as this one on amazon: Denali The chain rusted. I noticed that it listed the chain on amazon. Chain: KMC Z 51 I bought this one. I'm ...
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3answers
171 views

What could cause the bicycle chain to break?

I'm on an old Muji 3-speed commuter bicycle which uses an internal Shimano gear hub, and I recently (3 months ago) got my bike chain changed by my LBS. For about 2 weeks I felt the chain would ...
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3answers
917 views

Replaced chain, bike makes grinding noise?

Recently, I started going to a community bike shop to learn how to maintain and service my own bike. Ever since I changed the old, worn-out chain to a new chain with a master link, I've been ...
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1answer
141 views

Chain Noise I identified the problem, don't know how to solve it (chain/cassette?)

I bought a bike, second hand, yesterday. The bike looks quite new and it is ok, but I notice that with some gear I got a clicking noise. After inspecting the bike, I notice that the chain does not ...
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1answer
544 views

Chain not fitting chain ring

I just bought a 21-speed hybrid bike (Wal-Mart grade Schwinn) and to try to customize/simplify things (other bike is a fixie road bike), I removed the front deraileur and bought a new single-speed ...
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3answers
9k 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 ...
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1answer
391 views

Would an original Abloy padlock and [toughened] chain make a good bike lock?

Why are bike locks so fancy, so specialised? Would a small padlock, e.g. original Abloy make a good bike lock when connected to a chain? http://simple.wikipedia.org/wiki/Abloy (first image) Are ...
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3answers
14k 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 ...
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1answer
145 views

Do I really need a magic link or can I just replace the pin on my chain?

To install a new chain I need a chain tool to shorten it to the proper length. Why not just use that same tool to replace the pin and not deal with a magic link? Seems to me the pin would be ...
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1answer
134 views

Upgrading cassette - what do I need to be aware of?

I'm looking to replace my rear cassette and reduce the tooth count between the sprockets in order to make my gear changes less dramatic. I currently have a 11/26 9 speed SRAM cassette, and a stock ...
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2answers
1k views

10-speed chain too short, can I add links?

I purchased a new KMC DX10SC 10-speed 114 link chain to replace my worn out chain. I'm running a mountain triple and it seems that The chain is slightly too short at it's full length. I can't get in ...
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2answers
214 views

Snapping master links

I have a 3x9 gearing installed and I've noticed that the chain broke, by failure of master link, twice within 25 km. Interestingly, the failure was perpendicular to the direction of motion: What am I ...
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2answers
1k views

Chain “vibrates” on higher gears

My freewheel that I have installed myself only 1.5 years ago has totally worn out by the moment and so I just had it replaced along with a chain at the workshop. I'm still concerned though about the ...
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1answer
71 views

How do I know I should replace the chain? [duplicate]

I have been riding a folding bike in the past. I have never replaced its chain. Recently, I have bought a second handed road bike for $500. I am afraid of the chain breaking suddenly. How do I know ...
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1answer
90 views

Campagnolo drivetrain compatibility and noise

My bike has 2009 Campagnolo Veloce 10 speed drivetrain. I recently changed the cassette (still Veloce 10 speed) and chain (campagnolo Record 10 speed). I assumed the fact that the chain was in the ...
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1answer
160 views

When I press on pedal, intermittent loss of power

Recently, when I cycled my bike the pedals would jump when I pushed down on them. I brought it to a shop who replaced the cassette, the chain, the two crank arms and probably the crankset. I have also ...
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3answers
3k views

Clicking noise from crankset

A month ago I bought a Scott Aspect 60, and for about a week everything was ok. Then, I started hearing a noise coming from the crankset. First thought was that it was the front derailleur - after ...
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1answer
274 views

First time buying parts ( derailleur, chain, rear axel, shifters) need help!

I have a 21 speed (3 front, 7 rear) NEXT bicycle ( model number 8568-49, year 2007.12.06) sitting in my back yard at the moment a few missing parts and I was hoping to get some help on what to get and ...
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1answer
427 views

Why does the chain misalign in the lower pulley when shifting to the small front cog?

Almost every time I go from the big, to the small, front cog on my SRAM Red 2011 (with a KMC chain), the chain ends in the lower pulley position, as shown in the photo. Why?
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1answer
154 views

No more chainguide from Sram?

I remember I saw somewhere new Sram system that does not require chainguide. Don't remember the model, but could you please tell me more about it? How does it work?
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1answer
230 views

Campagnolo master link won't fit

I bought a Campagnolo master link (this one) for use with my Campy 10 speed chain. When it's not on a chain, it joins up and clicks into place and all is well. However, when I try to fit it around ...
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1answer
96 views

Is it ok to use a 9spd link on a 10spd chain?

I accidentally broke the master link (a.k.a reusable missing link) on my 10psd KNC x-10 chain. Since I only had a SRAM 9spd replacement link, i used that to connect the chain. I rode 30 Km without any ...
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1answer
2k views

Using a new chain on worn out sprocket?

I went to REI yesterday because my bottom bracket was creaking. I brought my bike with me so I could get the right tools to take it off, but while I was there the mechanic actually took the ...
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1answer
254 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 ...
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3answers
240 views

I just replaced my cassette, do I need replace the 2 month old chain?

I replaced both my cassette and chain in July (2.5 months ago). For some reason my chain started skipping when I was in the smallest cog in back. I took it to a shop, they could not find anything ...
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2answers
314 views

Shimano FD-M191 replaced with Shimano FD-M590

just replaced Shimano front derailleur (FD-M191) to FD-M590. And problem appears, on smallest cog chain rubs lightly on left side, and on biggest cog on right side. Just can't lower derailleur more ...
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1answer
453 views

Gears jumping/slipping from the rear cogset on a new bike

Its been 1 month since I have bought my new MTB (Kross globate 1.1) with 18 gears (shimano).. Now the problem is chain has slipped twice while riding. First time my speed was around 25kph and second ...
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2answers
210 views

What could be the reason for chain skipping

My chain is skipping only on the smallest sprocket, and it skips with every crank turn. The chain is not stretched. Also, chainrings are almost new. Could this freewheel be the reason, it doesn't seem ...
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1answer
874 views

Is an Acera cassette compatible with an 8-speed Deore rear derailleur?

Is this Shimano Acera 8-speed cassette and chain compatible with a Shimano Deore 8-speed rear derailleur on my mountain bike?
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1answer
95 views

Can I use this chainlink?

I bought this SRAM PC1091 chain for my compact chainset and have been running it since January. In order for the chain to fit properly I cut a few links from it. I am now getting a standard chainset, ...
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2answers
2k views

Cassette HG 51, which chain?

I need to replace my cassette (Shimano HG30 8speed 11-32) and chain (KMC Z7) that is currently on my bike (pinnacle Aura), however these parts are now discontiuned and I need to find the replacments. ...
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4answers
591 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 ...
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2answers
1k 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 ...
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1answer
187 views

Clicking noise coming from cog on fixed gear

Ever since I put my rear wheel on after taking it off, I have had this constant clicking noise from the cog. Here's what I know: It wasn't always like this. I rode for a few months with no ...
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1answer
155 views

Chain Slipping?

I am not the most knowledgeable when it comes to bikes so please bear with me. I have a Claud Butler and after fixing a puncture I decided to ride it. As I was riding, I could hear a sort of rattling ...
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1answer
139 views

Chain guide/tensioner for 2011 Giant Reign 2 (Press Fit)

Can someone recommend a chain guide/guard/tensioner that will be mountable to a 2011 Giant Reign 2 which has Shimano Press Fit and 3-ring crankset? The best I could find is: Kore Chain Reactor - ...
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3answers
320 views

Chain skipping with new chain and freewheel

I've recently (last 6 months) begun riding again after many years away and have begun updating components on my bike (a mid 80s era Fuji). After replacing the rear wheel and freewheel I developed a ...
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1answer
515 views

Can you take apart rear derailleurs, and how do you put them back together again?

I recently took apart my rear derailleur as it was on a 10 year old bike and really old and stiff. So I thought I would unscrew both jockey wheels and clean them, they had a silver bit either side, ...