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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0answers
43 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
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5answers
35k 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
121 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
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3answers
63 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
134 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
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5answers
3k 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
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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
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2answers
67 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
173 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
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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 ...
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3answers
3k views

What's the point of removing the excess oil after lubing the chain?

There is a very strong point in bike-mechanics culture, which I've seen in very competent answers here, too, to apply one drop of lube in every single roller of a clean chain, and then (!very ...
1
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0answers
53 views

Chain comes off full suspension 20" folding bike during casual rides- not derailleur issue

I have just acquired a like-new (ridden 3 times) 20" folding generic full suspension bike- front fork enclosed springs and rear coil spring/piston with tension adjustments by locking plate screw on ...
0
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0answers
152 views

Please help me understand why the back wheel doesnt spin

My bike has some problems and I hope you guys can help me fix it. Some weeks ago, the lock of my bike got frozen (bc of -30 degrees), so I decided to pour some hot water to the lock to defrost it. I ...
3
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3answers
221 views

How good or bad would chainsaw bar lubricant be as a bicycle chain lube?

A former cow orker asked me this today - and I don't have a good answer. He has access to plentiful quantities of chainsaw bar lubricant, the stuff that helps a chainsaw's chain move around the metal ...
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3answers
105 views

If I am using DRY lube, do I need to clean my chain between applications?

Do I need to clean the chain before reapplying dry lube if I am only using dry lube?
5
votes
4answers
345 views

Can Park Tool CG-2.2 kit work with the bike upside down?

I've recently acquired a new bicycle with coaster brake and internally geared hub. Naturally, I'd like the bike to last as long as possible. Unfortunately, the local weather seems to be stuck in "...
2
votes
2answers
994 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 ...
23
votes
8answers
14k views

New chain is pre-lubricated, should I clean it before use?

My new chain is totally coated in lube. I would never ride a bike with a chain like this normally. All that goop is just going to collect flotsam from the road and wear out the chain. Should I clean ...
8
votes
7answers
8k views

Reusing SRAM 10 Speed PowerLock?

According to: http://www.sram.com/sram/road/technologies/powerlock "SRAM chain engineers developed PowerLock as a tool free, sure and consistent way to connect our 10 speed chains. While PL does ...
9
votes
5answers
3k views

Do I need a new chain after 1300 miles (2100 km)?

I have a Boardman Airpro and probably need a new chain having done about 1,300 miles (2100 km) with it. The bike is used for leisure and commuting and therefore goes through all weathers. I also ...
17
votes
4answers
40k views

Help Me Understand My Bicycle's Gears

I've recently started commuting with a bicycle (Giant hybrid bicycle). I've been trying to learn a little about bicycling to make my commute easier and my time on the bicycle more enjoyable. Please ...
7
votes
3answers
496 views

Chain lube that won't repaint my legs?

Because I have sometimes spent a lot of time digging around for bike parts and only discovering the existence of something awesome after many hours of browsing, I'm wondering whether there could exist ...
4
votes
2answers
152 views

What does “11-25” mean in the cassette description?

I need to replace the chain and cassette on my bike soon but I don't know what teeth to count. The Shimano Ultegra 6800 11 Speed Road Cassette - has 11 gears on the back so I know to go for the 11- ...
5
votes
4answers
26k views

Heavier Thicker Chains and Gears for Winter due to Salt?

I have two bikes: one having gear-things outside and one with inner-hub. The gear-outside-bike has suffered a lot due to the salt during this winter, the other hilariously looks like a new one. I ...
2
votes
1answer
629 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?
12
votes
2answers
16k views

Chain slipping off derailleur jockey

Last week, I had to abandon a training ride due to my chain slipping off my rear derailleur jockey wheel. This would only happen when shifting, and most often when either shifting chainrings or ...
1
vote
1answer
84 views

Changing the entire chain gear mechanism

I have a Lapierre shaper 100. I am looking to change my entire chain mechanism as some of these parts need to be changed. I have selected my components, and I am hoping you can tell me if these ...
4
votes
2answers
113 views

Pedals won't turn normally following strange noises

My bike suddenly started creaking and squeaking very loud, and moreso the more pressure I put on the pedals. Then the pedals got stickier and harder to turn until I couldn't turn them at all. This was ...
4
votes
3answers
1k 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 ...
3
votes
1answer
273 views

Chain coming off with internal hub gear bike - why?

I have a Raleigh Caprice bike, about 7 years old, with sturmey archer 3 speed hub gears. There have been some problems with the hub gears in the past 9 months, which have been fixed by a mechanic. ...
18
votes
8answers
14k views

How can I clean sand off my bike chain?

Recently went for a ride in the forest, there were sections of sand and I can clearly see sand on my bike chain now. How can I clean this off effectively? There are chain cleaning "machines", but ...
2
votes
3answers
98 views

Should I change my chain? It broke once, but its condition seems rather good

Expanding a bit on the title, I ride a 27.5" KTM Peak XT with a 3x10 setup. The chain I'm currently using is of unknown provenience (it was already there when I bought the bike, and it wasn't new). It'...
2
votes
2answers
680 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, ...
3
votes
2answers
628 views

Chain really noisy near front derailleur on low gears but doesn't appear to be rubbing.

In the four lowest gears (i.e the 28 cog end) when in both the big and small ring, loud noises can be heard coming from what appears to be near the front derailleur. I've uploaded a video of the noise ...
1
vote
1answer
85 views

skipping on new chain/ cassette

I have a new chain/ cassette that is causing the chain to skip /jump randomly on an MTB I use for commuting and is driving me mad with the following symptoms: I can physically see the chain hop on ...
2
votes
2answers
298 views

Bike feels like it is getting stuck when I start pedaling or increase pressure as I go up hills

My bike feels like it is getting stuck when I start pedaling or increase pressure as I go up hills. Of course, I checked to see if the brakes were rubbing but they are completely free of the wheel. ...
19
votes
4answers
7k views

Is it possible to fit a chain guard to a bike with derailleur gears?

I've been slowly going through the process of converting my old hardtail mountain bike into a commuting bike. One of the things that I'd like to do is to fit a chain guard so that I can ride the bike ...
5
votes
1answer
329 views

belt vs chain for what matters performance only

Let's set apart all pros/cons of chains vs belts, like: ease of maintenance, need of a custom frame, cost, spare part availability, all of that: nope. This question is very focusing only on ...
1
vote
2answers
109 views

chain jumping when puilling away in a higher gear

I replaced the rear cog as the chain I had snapped and I thought it had taken some teeth off. Now when I pull away in 1-3 gears it's ok, but if I am in gears 4-7 and I try to pull away ( say I have ...
5
votes
1answer
167 views

My pedals are forced forward when the back-pedal brake is on

I have to backpedal in order to brake. But when I do this, it works for about 3 seconds and then there's some kind of noise and my pedals start going on their own. The momentum of my back tire would ...
1
vote
2answers
428 views

How to change 2x11 to 3x11 on mtb

Hey I was wondering how you would change a chainset from 2x11 to 3x11 on a Carrera Fury (SRAM components) Thanks
13
votes
1answer
686 views

What is the deal with the new weird Gazelle chain case design?

I was about to buy this bike (a Gazelle Arroyo c7): http://www.gazelle-fietsen.be/assortiment/arroyo-c7 when I realized the chaincase is seemingly deliberately designed so that the chain constantly ...
7
votes
3answers
684 views

Do aluminium chainrings/cassettes contribute to chain wear?

In trying to achieve a long lasting, low maintenance drivetrain, I've read statements about aluminium oxide being the source of the black colour of chain dirt and also being highly abrasive: ...
1
vote
3answers
256 views

Effect of salt on bike chain

I have seen other questions on this forum where preventive measures against salt water on bike chain are discussed. I have seen them in context to rusting. What I want to ask is that, rusting will be ...
10
votes
3answers
6k views

how do I paint a bicycle chain?

I've seen chains with so many colours, white, red, you name it. I would like to give it a try (this paint job is intended for visual styling of the bike, nothing related to protecting it), but I have ...
2
votes
2answers
1k views

How to assemble bike chain with no Master link?

I just bought a KMC chain on Amazon, and to my surprise, it didn't come with any kind of master link or connecting pin. I thought this was standard. So, did I just forget to order the part, or can you ...
9
votes
3answers
6k views

What harm results from riding with a stretched chain?

Due to sheer laziness, my maintenance amounts to an annual trip to the LBS. After moving, my new LBS suggested that I replace my chain immediately, before it destroys the drive train. What they didn'...
1
vote
2answers
316 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 ...