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

learn more… | top users | synonyms (1)

1
vote
3answers
132 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 ...
0
votes
0answers
36 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 ...
0
votes
2answers
131 views

Why does my chain slip off the chainring when cruising or back pedalling?

My bike is a little more then a year old (although I do put a lot of miles on it, about 12 miles a day), this problem seems to have started about a week ago. It's a 7 speed Avilon Next (a cheap brand ...
3
votes
1answer
60 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 ...
2
votes
1answer
205 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
1answer
85 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 ...
1
vote
4answers
75 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 ...
1
vote
2answers
120 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 ...
4
votes
1answer
272 views

How do I fit this pair of chain tensioners on my single speed bike?

I have these chain tensioners: How do I install them correctly on my single speed bike? Do they go on the inside or outside of the frame? My dropouts look something like this: Apologies if the ...
0
votes
0answers
22 views

How often should I lube with Pedros Ice Wax? [duplicate]

I'm a usa cycling road racer. I just got a recommended lube Pedros Ice Wax. I ride about 100 miles a week. How often should I lube my chain with it and how often should I clean it?
1
vote
0answers
150 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 ...
0
votes
2answers
51 views

Chain too wide for gap between chainring and chainring guard

I have a Seek 0 2013 and recently the chain has been stretched so far that it needed to be replaced. On the Giant site it says that this is sold with a KMC Z51 1/2" * 3/32" chain. I've since gone to ...
7
votes
6answers
2k views

Mechanic says not to use top three/bottom two gears or the chain will throw

I just bought a BTwin Fit 5, all stock, fresh from the distributor, Decathlon. Took it for light pacing at the store and things seemed OK. About 100 metres out the door, I shift up to the top end of ...
-1
votes
2answers
83 views

Looking for advice on upgrading

I have a Specialized Rockhopper SL. It currently has the Rock Shox Dart 3 front shocks and the Shimano HG-50 chain/crank set. I want to upgrade it cause when I hit that top gear and I'm going all out ...
1
vote
2answers
206 views

Is it normal for the chain to slip in an 'extreme' gear?

My bike's recently been in for a service so afterwards I checked that all the gears are shifting and working properly. As part of my testing I put some power through the cranks in the photographed ...
1
vote
3answers
135 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 ...
0
votes
1answer
66 views

My chain came out of dérailleur frame, but gap seems too small, am I misunderstanding something?

So the chain came off my bike on the way to work this morning, but when I tried to put it back on, it seems like it has also come out of the dérailleur frame, but the gap where it seems to have come ...
3
votes
2answers
123 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 ...
4
votes
1answer
201 views

Do chains on single-speed last longer than those on geared bikes?

I have a Jamis Beatnik (love) and ride on the single-speed side of my hub. I'm wondering - derailleurs seem to me like they might 'stress' the chain (even if only slightly) more than single-speed in ...
2
votes
1answer
151 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 ...
4
votes
3answers
479 views

Chain slipping on middle chainring

I have recently replaced the chain and the cassette. Previous chain never slipped. I never had any problems with it at all. But I have made about 10 000 km on it and the wear was beyound any limits, ...
-1
votes
2answers
102 views

New chain snaps after shop service

I changed my chain on my bike last week for a new 9-speed SRAM chain. When I did this it became apparent that my cassette was worn beyond use, so I took my bike for a service at my local shop. They ...
4
votes
3answers
342 views

How do I re-insert a chain pin that has been pushed completely out?

While breaking the chain, I pushed the pin too far and pushed it out completely. Now the chain is too short. How do I re-insert this pin, or should I look for other options.
5
votes
1answer
188 views

Is it best to put oil on the inner or outer of the chain?

When I oil my bike chain, I oil the inside and the outside like so: 1. Oil here ▼ ___________________ / \ | 2. And oil here ▼ | \___________________/ Cycle on 1/4 of ...
3
votes
2answers
187 views

Risks/problems of a short chain

I've put a new chain on my bike using method 3 from Zinn's art of road bike maintenance to determine length: "Wrap the chain around the big chainring and biggest cog without going through either ...
1
vote
1answer
87 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 ...
1
vote
2answers
175 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 ...
3
votes
1answer
195 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
145 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?
1
vote
1answer
106 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 ...
3
votes
3answers
186 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
1answer
177 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 ...
0
votes
1answer
66 views

How to reuse a rim after the brake edge has been damaged [duplicate]

My chain fell of and got stuck a few days ago (i ride fixed gear) and made a real mess of my back rim. I noticed 2 marks on the brake edge of the rim where the chain scraped along. they are not very ...
0
votes
2answers
233 views

Crunching/grinding chain noise

I repaired a puncture in the back wheel of my bicycle and had some trouble re-attaching the wheel to my bike. I finally did it but now the chain makes a terrible crunching noise when i pedal forward, ...
0
votes
0answers
101 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 - ...
-1
votes
1answer
380 views

Specific 10 speed chain models that work well on 9 speed Shimano rear drivetrains

I maintain several 9-speed (rear cassette) road bikes (Giant OCR 1/2/3, Tiagra and 105 from 2000-ish era) and one 10-speed rear cassette 105 road bike, made in 2007. I'm trying to find out if I can ...
1
vote
5answers
209 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 ...
1
vote
1answer
114 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 ...
3
votes
1answer
136 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 ...
7
votes
2answers
1k views

Why did the chain on my kid's bike slack after I changed his tire?

I changed the rear wheel on my child's bicycle today. Once I was done and put it back together, the chain is inexplicably longer; there is a lot of slack. How did this happen and how do I resolve ...
2
votes
1answer
110 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 ...
0
votes
0answers
132 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 ...
1
vote
3answers
269 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 ...
4
votes
1answer
508 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?
2
votes
0answers
145 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 ...
1
vote
1answer
331 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 ...
1
vote
1answer
259 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 ...
0
votes
2answers
165 views

WD40 on Single-Speed Chain [duplicate]

Simple Question: May I use WD40 to lubricate my single-speed chain? Does it not have any negative effects in terms of the chain performance and biking in general?
0
votes
0answers
94 views

How do I fasten my loose chain guard?

I have a dutch bike and over time the chain guard has come loose. It falls down and ends up resting on the chain. The problem is that I can't see a obvious way to fix it. There is no external bolt or ...
1
vote
1answer
350 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, ...