27 votes
Accepted

Putting pin(s) back into chain

It's safer and way easier just to buy another MissingLink (KMC's name for their master link design) of the same type (pin length) the chain came with, leaving you with an inner link that has one on ...
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25 votes
Accepted

Can’t attach master link

The secret is simple, you need to: place the master link (the part with the pins) with the opening towards you, bend (flex) the chain so the open ends of the pins come closer to each other, put ...
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  • 4,201
19 votes
Accepted

The master link that came with my chain won't fit

You need to bend the chain. Look at this link (PDF) for the Connex Snap On which is the same idea. The PDF is reproduced below in case the thing goes down. As an aside, you normally can get an ...
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  • 45.6k
15 votes

Putting pin(s) back into chain

This article titled, How to Get the Pin Back Into a Bike Chain, will give you a step by step guide on how to put the pin back in a bike chain. Edit: I'm copying the article just in case the link ever ...
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  • 1,857
15 votes
Accepted

Can you reattach an SRAM powerlock?

For 9 speed or below, SRAM sells the Powerlink, which is a reusable way of opening and closing a chain. You can open and close these a few times, at least for the life of a chain. For 10 speed and ...
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  • 45.6k
12 votes
Accepted

Quick link too easy to remove after installation, is this a problem?

If the link can be easily opened just with your fingers I’d say that’s unacceptable. I don’t know what the probability of the chain coming apart is, but I would not risk it. Quick links are relatively ...
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9 votes
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How to find key values of a chain?

Update: Based on your other question: Possible to identify sprocket without taking the bike apart? - you have a Nexus internally geared hub, which would mean you may need a single speed chain. For ...
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9 votes

Quick link too easy to remove after installation, is this a problem?

@Argenti correctly noted that if you can open an 11s link with your fingers, then unless it is a Wipperman Connex, this is a bad sign. Most 11s and 12s links need a lot of force to close, and need ...
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  • 20.3k
8 votes
Accepted

Chain with master link / quick connect link doesn't clear rear derailleur

That chain connector is not only for single speed, but I believe it is for 1/8" chains as well, so you may have a track chain, which is not meant for multi-speed drivetrains. If it's not an 1/8" ...
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  • 11.8k
8 votes

Can I reuse chain link pins after removing links from shortening chain

It is not advisable to reuse a previously pushed out link pin to rejoin the chain. The chain will quickly come apart at that junction when riding. Shimano chains can be rejoined with a special, speed ...
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  • 7,079
7 votes
Accepted

Multiple master links on the same chain

Nothing wrong with it other than aesthetics. I have 3 master links on the 2.8 metre chain in my `bent. Its glaringly obvious too cos the masters are shiny chrome and the rest of the chain is a dull ...
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  • 101k
7 votes
Accepted

Does master-link size matter?

Like so many other things in life, size does matter. You need to have the master link matched to the chain size (which depends on the number of speeds and manufacturer (which is basically campagnolo ...
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  • 45.6k
6 votes
Accepted

Quick link won't 'click'

The master link on the picture looks properly closed. Master links for 8- and 9-speed chains often do not require tools to open them, while 10/11/12/13-speed chains are better approached with special ...
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5 votes
Accepted

how to identify chain type

Any brand link that is rated for a 7 speed chain will fit. Sram refers to there's as a Power Link, KMC calls it a Missing Link other are quick connect. What is important is that it not the type with ...
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  • 18.1k
5 votes

Putting pin(s) back into chain

With older style chains which were designed to be split and joined with a chain tool, the simple fix here would be to use some of the excess chain you cut off of the new chain (they're always too long)...
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5 votes

Re-use Shimano quick link?

If I understand correctly you want to buy a new chain and re-use your previous masterlink. I'd strongly advise against. The reason for NOT re-using an old masterlink with a new chain makes sense. ...
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  • 8,165
5 votes

Can I reuse chain link pins after removing links from shortening chain

The Shimano-sanctioned ways: Use an 11-speed Shimano connecting pin. Use a new 11-speed Shimano 2-piece link. Don't try to press a normal link back in. As there are many questions here about, the ...
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4 votes

Putting pin(s) back into chain

Today I discovered a fast method of getting a loose pin back into chain without any special tools. Not recommended except last resort! Stick screwdriver/spanner between the open ends of the outside ...
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  • 141
4 votes

Chain with master link / quick connect link doesn't clear rear derailleur

Yes you have the wrong part. Count the number of cogs in the cassette / freewheel. Get a chain for that number of speeds. Probably a 9 speed.
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  • 15.4k
4 votes

how to identify chain type

It looks like a variant of the KMC Z8, with a pin length of 7.1mm: The KMC website suggests using a MissingLink 7/8R 7.1mm (although others should work as well, as mikes points out).
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  • 2,777
4 votes

Is there a master link for single speed chain that will fit in Shimano chain tensioner?

Assuming you have a new KMC chain (pic of the connector is KMC). KMC definitely makes 1/8" chain connectors of the 'Missing Link' style without the extra side plate clip that is presumably causing ...
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4 votes

Can you reattach an SRAM powerlock?

Do not reuse 10 or 11 speed quick links. Doing so could result in a snapped chain. This will potentially cause injury to yourself and/or others and it's not worth the risk.
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  • 61
4 votes

Multiple master links on the same chain

More than one master link should be fine. The only issue I can see with this practice is having a few links of unworn chain inserted into a worn one which might cause problems - not a problem in your ...
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4 votes

Quick link too easy to remove after installation, is this a problem?

You might have just gotten one where the tolerances just don’t line up. For example, the slot on the side plates might be on the wider side, while the slot on the chain pins may be on the narrow side. ...
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  • 11.3k
3 votes

How to find key values of a chain?

"I want to get the best possible quality if possible." All 1/8" or 3/32" wide chains will work and last about equally-well. Take the mass market leader, KMC, and its mainstay single speed chain. ...
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3 votes

Can you reattach an SRAM powerlock?

I've had no problems with re-using them (on both mountain and road bikes). Be aware though that unlike 7/8/9 speed SRAM powerlinks you can't remove the 10 speed ones by hand, you'll need pliers. (You ...
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3 votes

Quick link too easy to remove after installation, is this a problem?

There's a high chance it's counterfeit, depending on where you bought it from. The KMC quicklinks and chains are accurately made. Counterfeits are not. Some counterfeits will stay together IME, others ...
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  • 4,060
2 votes

How to assemble bike chain with no Master link?

You could try using a simple chain breaking/Rivet tool to break the chain at one point (while still keeping the pin in the link) and then put the chain on and use the tool again to push the pin in and ...
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2 votes

Putting pin(s) back into chain

Without specialist equipment, the only practical/reliable way to replace a chain pin is to buy a new one designed specifically for that purpose http://kmcchain.us/connector/bullet-pin/ but at the ...
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  • 760
2 votes
Accepted

Bike chain rattles

Chain 'stretch' due to wear is not going to make the chain appreciably longer and affect tension. You imply that the chain has been replaced. Could it have been incorrectly sized? The 'A' pivot (...
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