How to fasten a bike chain lock

How to install a double pin chain lock

To close this lock, you need to rest against the pin and the cheek of the lock from the side where there is no cut. We press with pasatizh, and the lock is installed. If there are no passages, use a screwdriver. We rest with a screwdriver on the edge of the cheek, where there is no cut, and press until the lock closes.

Design

Their design is extremely simple. there is a cheek on which 2 pins are located. They are pushed into the holes in the chain links and pressed down with a double-hole washer. Everything is fixed with a locking cheek.

How to install a chain lock with 2 symmetrical pieces

Putting the lock is very simple. It does not need to be snapped into place, since we will do this as soon as we press the pedal for the first time. But you can try to pull the chain in different directions to hear the click of the lock. The main thing is to make sure that all parts of the castle fit into each other.

View 2: Chain lock with 2 symmetrical parts

The most common and convenient type of locks. Fits on virtually all modern multi-speed bicycle chains. These locks are often difficult to remove. When I removed such a lock with my hands for the first time, my hands were bloody, but the lock remained in place. Most often found on KMC, Sram, FSA chains. Surprisingly, Shimano does not use such locks. Used for almost any number of speeds from 1 to 11.

How to open a chain lock with two pins on one side

These locks are the easiest to open. It is enough to grab the pin and the locking cheek from the side of the cut with pasatizh, press a little. and the lock is open. If no pliers are available, a screwdriver can be used. We rest with a screwdriver on the edge of the cheek from the side of the cut and press until the lock opens.

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Design

The castle consists of two parts. The first part is two pins located on one cheek, and another cheek (bar) with a hole in the middle, which keeps the chain links from opening.

Types of locks for a bicycle chain, methods of installation and removal

bike, chain, lock

Over the course of my life, I have come across 3 types of bicycle locks. Today I will tell you how easy it is to put and remove a chain lock in any form.

Removing the chain from a bike

The need to remove the bicycle chain occurs when it needs to be replaced, washed thoroughly or boiled in grease (in the case of a single-speed chain). Therefore, a small beginner’s guide.

It is possible to remove the chain from the bike only by removing the axle connecting the links (pin). You can squeeze out the pin without a tool, right in the field. by placing the chain on the edge of a solid object and tapping the axis with a thin knitting needle.

Unfortunately, this method will not allow you to assemble the chain back, because there will be nothing to press in the pin. Therefore, to remove the bicycle chain, you need to have a special device. a squeeze, it is best to take a multitool, which includes all the main bicycle keys, including a squeeze. I have one like this. very satisfied.

Place the chain link on the squeeze so that the pin is directly in front of the tool release axis. Then it’s simple. gently twist the handle, and the pin is squeezed out.

The main thing is to stop at the end so that the pin does not pop out completely, otherwise then your vocabulary will not have enough swear words to push it back.

Below is a video showing what I’m talking about (1:05).

In general, ideally, I recommend putting the lock on the chain, this allows you to remove and put the chain on the bike instantly.

When installing the chain on a multi-speed bike, you need to follow the pattern of pulling along the rollers of the rear derailleur, I painted in red in this picture:

Everything is very simple, and there is absolutely no need to go to the bike master because of some minor problem with the transmission.

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HOW TO SET BIKE CHAIN LOCK

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“The main thing is to stop at the end so that the pin does not pop out completely, otherwise your vocabulary will not have enough swear words to push it back.”
I fully confirm. =) I put a pin for 1 hour

Viktor, a question: there used to be a chain with locks (lock), now I bought a new chain that comes with an installation pin (spike). When installing locks, do you need to remove one link from the chain, as the chain will lengthen by the length of the lock, or installing the lock will not lead to excessive lengthening = chain sagging and you can ride without bothering about this topic?

Vladimir, if it’s still relevant: the new chain needs to be adjusted to the size anyway. The simplest and most common (and, in my opinion, correct) recommendation is to put the chain on large stars in front and behind (past the switch, just on the stars) and leave 2 links if the chain is with a pin and 1 link if you want to put a lock. The rest must be removed.
The main thing, before closing the circuit, do not forget to pull it along the rear derailleur, so as not to get the semi-fix

Good afternoon friends! The question arose. does the grip of the pin with the plates weaken after removing and reinstalling it and can it lead to its rupture??

The main thing is to try not to squeeze out the same pin more than 1 time. Then it can start to tear. And you cannot squeeze out the connecting pin, it is disposable.
On a children’s single-speed bike, the chain somehow began to break, I had to rivet this axle. But there the chain is different in design.

Victor, thanks for the article!
There is a need to tell you about locks for a bicycle chain: how to choose the right one, how to change it correctly, etc.
thank!

Thanks for the site and article! Unfortunately, when replacing the chain, I messed up: put the chain 2 links longer (Merida Matts 20MD chain SHIMANO HG40)
stood from the factory for 108 links and put on 110 links and a cunning UG51 lock consisting of one plate with a notch and a link with two pins
1. It is easy to put on the lock, but it is impossible to remove it How to remove such a lock?
2. If there was a chain with 108 links and put it on 110 than it threatens?

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Paul, two links are not a reason to worry.

What I didn’t understand is the removal of the chain if there is no lock. Does the squeeze remove the devil’s problem from any link in the chain or only with the lock? If the chain is removed without a lock, the question is why the lock ?

How to Fix a Broken Bicycle Chain

Anton Chernyshev.
05/31/2014 at 06:16
Vladimir, if it’s still relevant: the new chain needs to be adjusted to the size anyway. The simplest and most common (and, in my opinion, correct) recommendation is to put the chain on large stars in front and behind (past the switch, just on the stars) and leave 2 links if the chain is with a pin and 1 link if you want to put a lock. The rest must be removed.
The main thing, before closing the circuit, do not forget to stretch it along the rear derailleur, so as not to get a semi-fix

Can anyone explain in more detail what it means to leave 2 links? Does it mean that two links hang like “extra”? What does a chain with a pin mean??

“Therefore, to remove the bicycle chain, you need to have a special device. a squeeze, it is best to take a multitool, which includes all the main bicycle keys, including a squeeze.”

That is, there are multi-keys with squeeze? I have not met something. Squeezing is a must-have attribute in a cycling trip.?

there is a link in the same place, you can see how I use a multitool with squeeze.

“Is squeeze a mandatory attribute in a cycling trip?”

of course. Even just in pokatushka it is desirable to have it.

I am interested in such a question. when installing a lock on a chain, you need to remove one link?