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
6k 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 ...
4
votes
4answers
3k 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?
3
votes
1answer
67 views

Modded folding bike and strange chain skipping on most gears

I've a folding Tern Link D8 that I've started customize by replacing some parts...what is driving me nuts is a strange chain skipping that happens on some gears and only when I apply some force (...
5
votes
2answers
11k views

Upgrade Shimano from 9- to 10- speed

I'm thinking of upgrading the 9-speed Tiagra rear mech on one of my (road) bikes to something, still Shimano, but 10-speed. The obvious replacements I'll need are cassette, right-shifter and chain. ...
29
votes
4answers
13k 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 ...
4
votes
2answers
353 views

Why do my pedals shake and pop?

I just purchased a cruiser bike online that I had to assemble. When I rode it for the first time, I notice my pedals felt shaky, whether pedaling or coasting, and when I did pedal every few seconds ...
2
votes
3answers
1k 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 ...
1
vote
1answer
41 views

Do all 10-speed chains fit 3x10?

I'm wondering if all 10-speed chains fit to 3x10. A lot of webshops say that the chain is "for road bikes 2x10" or something like that. Or nothing at all. The chain I have right now (Shinano CN HG-54) ...
3
votes
1answer
136 views

My chain is catching on a part for which I don't even know the name

A couple of days ago I was riding my bike and when I hit a hill and was shifting down through my gears, the chain slipped off the gears. I hopped off the bike and walked it back home, flipped it ...
0
votes
1answer
88 views

Why does my rear cassette feel like it's jumping when I put pressure on small cog?

I just gave my bike a going over with new bearing cages in the BB and a new chain. After putting everything back on I indexed the gears - finally getting the hang of the front but first time indexing ...
7
votes
0answers
112 views

Mechanism behind chain wear phases

Methods As an experiment I started taking regular chain stretch measurements, from when I first put on a chain until it is worn out. A Park CC-2 was used and each measurement was done in triplicate, ...
0
votes
1answer
27 views

Conversion 9 spd to 10 spd [duplicate]

I'm thinking of upgrading from a 9 speed (11-34T cassette) to 10 speed. Scoped out a few components and 1) Shimano Deore XT CS-M771 10-Speed Cassette 11-36T 10-speed HG cassette 2) Shimano Dyna-Sys, ...
3
votes
3answers
173 views

What is causing this chain clicking noise?

The click only happens when the chain is moving in certain locations. If the gear is low it happens every rotation and if the gear is high it happens 2 or 3 times per rotation of the pedal. I am ...
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vote
2answers
76 views

Bike chain slips off sprocket as I pedal during repairs. Any idea why?

I am having an issue with a 26 inch Beach Cruiser. Everything was put together by a bike shop however one of the chains slipped off the sprocket during transport home. When I went to put it back on, ...
3
votes
0answers
84 views

new 9-speed chain fails after 4 weeks and ~240 miles

About 4 weeks ago I installed a new SRAM PC-971 chain on my Surly LHT. This morning I've noticed that one of the outer chain link plates started to pull away (to spread in a way that the pin is not ...
6
votes
1answer
145 views

timing chain keeps dropping/derailing only with partner

For a volunteer project biking with blind riders (NiewidomiNatandemach.pl), we've been partnered up and provided a tandem bike, that seems new enough and in good condition. Unlike the guy behind me--...
1
vote
1answer
51 views

Chain replacement - how many links 114/116?

I'm replacing an (exact same) Shimano 11 speed chain, the cassette is Shimano Ultegra 11-25T . There are 54 links that look like ()(). What size of chain should I order : 114 or 116 ? I'm going to ...
4
votes
2answers
145 views

Is there a difference between the durability of the chains with 1/8 and 3/32 inch?

I mean, I have a single-speed bike and have chains width 1/8 inch. The other standard I could use on my bike is 3/32 inch wide. Is there a difference in durability?
11
votes
1answer
5k views

How to mount SRAM snaplock?

I am trying to join PC-1 SRAM chain, it has such snaplock: And the problem is, the distance between holes is slightly less (IMHO) than distance between the pins. Every hole on its own fits any pin, ...
2
votes
2answers
212 views

How should the chain be routed on this deraillier?

I feel dumb asking this, but how should the chain be routed around the cogs on this deraillier? I had to split the chain and then put it back on. I didn't pay attention to how it went round. This is ...
4
votes
1answer
183 views

Is it possible to over-clean a bike chain?

I've seen it suggested that cleaning a chain too often or too thoroughly is bad for it, in that it removes the lubricant from the innermost parts of the chain, where it's most needed and most ...
4
votes
2answers
100 views

Chain skipping mid cassette after a clean

I have cleaned my chain and gears with rubbing alcohol and towels. Afterwards, I applied some chain lube on the chain. Now, when under a lot of torque, the chain skips and slips mid-cassette. Low ...
3
votes
2answers
239 views

1x Specific Chain

I was shopping around and noticed the presence of 1x specific chains for the specific cassette size (9, 10, 11). Is there actually something special about these changes or is this just marketing? 1X ...
4
votes
2answers
2k 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 ...
2
votes
1answer
70 views

How to change front gearing

So I have a bicycle that has a single front gear, but many back gears with a derailleur. I am wondering if I change the size of the front gear (like significantly), meaning if I get a bigger front ...
5
votes
7answers
5k 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 ...
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vote
2answers
128 views

I cleaned my cassette and changed my chain, now my freehub is slipping. What are the possible causes? [duplicate]

I removed my cassette, cleaned it and put a new chain on my mountain bike. All seemed to go well and went back together nicely. However when I took it out for a ride the free hub seems to be slipping ...
4
votes
4answers
2k 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 ...
4
votes
2answers
141 views

Chain hops off cassette sprockets when I stand-pedal

When I pedal while standing, the chain hops off to a smaller cog. This happens when I "tilt" the bike, as we do when stand-pedal. I am not really sure why this happens, but I think the chain is loose. ...
3
votes
1answer
81 views

If chain/ BB/ casette are dead can chainrings and derailleurs still be OK?

I bought a brand new bike last May (2015 Brodie Elan) and proceeded to put 11,000km on it by November (cross Canada ride plus some commuting). Around the 11,000km mark I brought it back to the shop ...
0
votes
1answer
77 views

What tool is needed to remove KMC X11 w/MissingLink, 11-speed chain?

I need to take it out and then clean it- its full of sand. Maybe even replace it. Does any universal chain tool work. Should I get one from the manufacturer.
3
votes
1answer
33 views

Replacing rusty crankset

I am trying to replace a rusted crankset for a friend's hybrid and I was wondering if I get the same ratio set would I have to change the mechanism as that's fine.
0
votes
1answer
63 views

My chain snapped ,need help [duplicate]

My chain broke today and I want to get a new replacement for it I just don't know what size I need my bike has 3 gears in front and 6 in the back which I'm guessing is an 18 speed and if you can leave ...
7
votes
7answers
295 views

why would my chain slip on the road, but not when the bike is on a stand?

The chain on my bike has started to slip a lot -- every couple of seconds when riding. It happens, as far as I can tell, in every gear, and is unrelated to shifting. The precise nature of the problem ...
0
votes
1answer
84 views

How to tell the size of a bike chain? [duplicate]

My bike's chain broke, so I have to replace it now. The question is - how can I tell what size chain do I need to buy so it fits the bike? It's a 5 gear internal-hub bike.
2
votes
3answers
108 views

single speed mtb chain slipping

hey i am new here and i was just wondering if anyone can help me out with the problem of my chain keeps slipping when i pedal a little bit hard. I took my bike to lbs and they said that my chain was ...
3
votes
3answers
161 views

Cranksets for tandem with internal gear hub

I am thinking about assembling a trekking tandem bike. I would like to use an internal gear hub and put both chains on the right side of the bike. I have some questions about the cranksets: What ...
4
votes
3answers
128 views

Chain length when swapping between cassette sizes (11-28 and 11-23)

Currently I am running a semi compact 52/36 up front and a 11-28 at the back. I'm planning on getting a 11-23 cassette for criterium races, and have the 11-28 for hillier rides. Will there be any ...
1
vote
0answers
42 views

Chain vs seatstay with a 50T Chainring - BMX frame

I plan to put a 50T chainring on my bmx but I am afraid to have an interference between the chain and the frame. Does anybody know what is the critical distance between the seatstay and the chain so ...
13
votes
5answers
33k views

What is the easiest way to fix a loose chain?

Are there adjustments that can be made instead of replacing it?
2
votes
1answer
102 views

Chain slips to lower gear when pedaling backwards

I have a hybrid 18 speed bicycle which is able to shift through all gears on both the front and rear sets of gears. When on the largest gear on the front set (by the pedals) the chain will try to ...
0
votes
3answers
62 views

I have a bike with a ratio of 3.11 to 1, how many links do i need in a chain? [duplicate]

I legit just broke my bike chain riding it. One of the links just snapped and i wanted to replace it with a brand new chain that will hold up better. How many links do i need in that new chain so that ...
4
votes
3answers
126 views

How to measure and cut chain

I am currently building a road bike. I measured the chain using the largest ring and largest cog method, I counted two extra links and cut the chain using a chain tool. Both ends of the chain now ...
3
votes
3answers
3k 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. ...
5
votes
3answers
1k views

Why don't standard bike chains have inner/outer combo links so odd chain lengths are possible?

I noticed while at an amusement park that on the roller coaster, each link of the chain has what can be considered a combination inner and outer plate. The side plates are somewhat diagonal so they ...
13
votes
5answers
2k views

How do you count the number of links in a chain?

I thought this was a simple question but apparently there is some confusion - and it's good to have a basic question to refer people to. How many "links" are in these short bits of chain: Image A (...
10
votes
5answers
4k views

How to fix new chain that switches gears when pedaling backwards

I just recently replaced a chain that got incredibly beat up in the winter (it was rusted, and practically stiff when I removed it.) I removed links from the new chain to match the length of the ...
1
vote
2answers
61 views

Rear Cassette worn + needs replacing - what other components to replace?

I have picked up a bike (Specialized Allez) recently that has a very worn cassette from not replacing the chain for an extended period of time. Therefore am looking to change it. I was wondering what ...
2
votes
2answers
156 views

Chain falls off all the time when I want to shift from small to big front ring

90% of the time when I shift from the small front ring to the big one the chain falls off to the pedal. Why is this happening? This is a dual click, SRAM Rival. Shifting on a back wheels perfect, no ...
7
votes
3answers
4k 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 ...