How to tighten the chain on a bike simple

Adjusting the bike with speeds

The amount of chain tension on a bike with a rear parallelogram derailleur is determined entirely by the force of the derailleur spring. But if the chain is too long, then this tensioner will not be able to compensate for its slack, and it will begin to hit the frame. This is especially true for bicycles with a short rear thrower. Too short chain makes gear shifting difficult. It will cause accelerated wear of the transmission parts. This primarily applies to two-suspension bicycles.

Very often, when installing a new chain on a high-speed bike, it is necessary to shorten its length, that is, remove several links.

There are two ways to determine how many links to remove:

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  • Place the chain on the largest sprockets at the front and rear. Pull on it, pushing the rear derailleur all the way forward. Now it only remains to add two links, and the optimal length will be determined.
  • Place the chain on the front of the largest sprocket and on the back of the smallest sprocket. Pull up the chain until the rear derailleur frame points straight down, more precisely, when the derailleur roller axles become one vertical line.

On double suspensions, it will be more correct to adjust the chain length by pressing the rear swingarm down to the position when the front sprocket cassette is as far as possible from the rear ratchet. By marking the desired length, extra links can be removed.

Removing links

Collapsible chains are placed on a regular bicycle without speeds; they have a lock on one of the links. Most modern speed bikes use non-separable chains with all the links riveted equally well. It is not difficult to disassemble a one-piece riveted chain, it is enough just to grind the heads of the pins on one of its links on emery. It is even easier and more accurate to disconnect the rivets using a special tool. squeeze.

It should be noted that pomace is a versatile tool. With its help, you can not only squeeze out the locking pin, but also re-rivet the disassembled chain. Many squeezes have two working grooves: one is needed for pressing the pin out of the roller, and the other is for pressing it in. A mounting location farther from the pressure screw is for ripping the chain pins. You can learn more about using such a tool in the following video.

Adjusting the tension on a bike without gears

A properly tensioned chain on a bike without speeds should be slightly free by an amount of sag of about 5 mm.

To tighten the chain on a regular speed bike, you need to:

  • Put your transport wheels upside down.
  • Loosen the nuts or eccentrics of the rear wheel.
  • Adjust the correct amount of chain slack by sliding the wheel along inclined slots called dropouts.

It is necessary to fix the rear wheel only in the position when its axis is parallel to the carriage shaft.

If the chain is too tight, it becomes very difficult to pedal on the bike, the parts of the chain drive wear out quickly. Whereas the sagging chain can jump off the asterisks, and it will definitely be impossible to go further.

If the wheel is already against the edge of the dropouts, there is nowhere else to move it, and the chain belt is still dangling, then you will need to remove a couple of links.

How to tension and adjust a bicycle chain

An important element for the bike‘s performance is the chain, the life of which depends on timely care. When working, it should not crack and creak. It is normal that during operation it gradually wears out and, as a result, lengthens. When adjusted correctly, the chain should have a slack of 10-12 mm. When pulled with your fingers, it should give in by 10-15 mm, and if this value is greater, then it must be pulled. Note that this is only relevant for bicycles or without derailleurs, or with planetary gears.

It is also important to adjust the tension when installing a new chain. It is even more important to tighten it after the first three arrivals. A new part stretches very quickly during the first time of operation.

Chain slippage

The chain starts to slip when the tension is released due to its extreme tension. And when overstretched, it, in turn, quickly wears out the sprockets. So by putting a new chain on an old ratchet, you may not achieve anything. All the same, slipping on small stars will remain.

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If this is not the first time you tighten the old chain, get ready to replace it soon. Remember that you can only remove two links from it once. In the end, you still have to spend money on a new part.

Easiest way to tighten your bike chain!

Break of the chain

If you switch the speed at the moment of load, for example, when climbing a mountain, a chain break is likely. When the chain breaks, the link often breaks or breaks.

If riveting occurs, you can try riveting the link again. Since this is done with a chain puller, it is advisable to keep the tool close at hand. If a link breaks down, it must be removed together with the adjacent.

Installing the bike chain is a simple job. It is enough to pull back the rear derailleur itself on the weakened chain and put it directly on the front sprocket.

What to do if the chain is loose on a mountain bike?

If you encounter the problem of chain sagging on a mountain bike or any other that has several gears, then in such a situation it is changed. The fact is that in such bicycles, the machine is responsible for the chain tension. With the help of a spring, it constantly and automatically corrects the tension in the chain mechanism.

To save money, some craftsmen “cut” the chain, that is, cut it and reduce the number of links. In this case, the links are connected with a special lock. Of course, this option is also possible, but it is important to understand that a stretched chain is a worn out mechanism and it will not last long.

When buying new chains, it is important to know that they are different and may not fit your faithful two-wheeled friend. First of all, you need to make sure what chain pitch is used on your bike model. And you also need to decide on its length, which is usually measured in the number of links.

Principles of work

It is important to figure out how to tighten the chain correctly on the bike when you first install it, otherwise it will be difficult to move the bike and the gear mechanism will collapse. To do this, perform the following actions:

  • the bicycle is turned over with the wheels upward and placed on a solid base;
  • the required chain length is measured. it is enough to leave a margin of 5-10 mm, which is compensated by the tensioner rollers;
  • all stars and other transmission elements are lubricated to reduce friction;
  • the chain is disconnected on a special link. a lock that easily snaps into place and opens with a tool, after which it returns to its original position without difficulty;
  • the largest of the rear stars is put on first, then the front one;
  • by circular rotation of the connecting rods and the system around the axis of the carriage assembly, the chain is placed in the operating position (a spring-loaded gearshift mechanism with a tensioner provides it with the required position when changing speeds).

If you follow the theses of this simple technique, you will not have difficulties with the transmission. All the experience gained during the installation process can be applied in order to teach friends how to tighten the chain on a bicycle.

How to properly tension your bike chain and why it matters

Everyone knows why you need a chain on a bicycle. But not everyone knows all the subtleties of its device and what danger its malfunction conceals in itself. Therefore, it is so important to know how to properly tighten the chain.

The bicycle chain is one of the most important parts of this type of transport. Its main task is to transfer the energy of the cyclist’s muscle work to the rear wheel. In addition, they are the driven link of the bicycle gearbox.

Such a mechanism is formed due to the fact that the driving sprocket (which is on the pedals) is always made larger than the driven sprocket (the sprocket on the wheel).

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Thanks to this, a law of leverage is formed, which allows you to transform one type of energy into another.

If we talk about those bicycles on which there are several gears at once, then here the chain is assigned an even greater role.

In such a system, the chain drive acts as a floating transmission link that connects the drive sprocket to the driven.

At the same time, it is not difficult to guess that if the chain breaks off, the transport will not be able to go further. And it happens quite often if the cyclist forgot to tighten the chain.

Adjusting the bike chain

In order to set the required tension, the bike is turned over and placed on a saddle or rack. The rear wheel is removed by unscrewing the nuts or loosening the eccentric clamp.

The brake lever and bracket on the stage are lowered so as not to interfere with the work. Further, the chain is disconnected with a lock, its excess part is removed, and after shortening it again returns to its place.

The PROPER way to tighten your chain

If your bike is of an old design (with horizontal dropouts), then all the processes are simplified by an order of magnitude. It is enough just to move the wheel further along the guides, and the question of how to put the chain on the bike correctly will be solved. However, in this case, it is necessary to control the wear of the links, since neglecting them can lead to breakage of the stars.

Tensioning procedure

We turn the bike upside down. Loosen the bolts or eccentrics that fix the rear wheel in the grooves (dropouts) and tighten or loosen the chain tension by moving the wheel further or closer to the drive sprocket. Do not forget that it should not be overtightened. After we have adjusted the required tension, we check the perpendicular position of the axis of the rear hub relative to the longitudinal axis of the bike. Tighten the fixing bolts or eccentrics.

There are times when it is no longer possible to move the sleeve back. This tells us that the bike chain is too stretched and it would be desirable to replace it. But there is one more way out. For this we need pomace. This device is designed to separate the chain links. Thanks to it, several links can be removed, thereby shortening the chain. If you have a similar case, then below in the article, a separate item will be a brief instruction on how to remove unnecessary links.

If the bike has several speed modes

The tension of the chain mechanism on a bicycle, the design of which assumes the presence of a rear parallelogram derailleur, directly depends on the stiffness of the spring on the derailleur.

With a long chain mechanism, the tensioner simply will not be able to compensate for the excessive slack, respectively, the chain will hit the frame. Owners of bicycles with an insufficiently long rear spreader should pay special attention to this problem. With a short chain mechanism, it will be very difficult to perform gear changes. As a result, the entire transmission structure will wear out faster. This problem is more pronounced in the case of two-suspension mechanisms.

A common problem when installing a new chain on this type of bike is the need to shorten it. To do this, you can use one of two ways:

  • The installation of the chain mechanism is carried out on the largest sprockets at the front and rear. We pull on it and move the rear derailleur as far forward as possible. By adding two links, the required chain length can be determined.
  • The chain mechanism is thrown in front of the largest sprocket, and at the back, on the contrary, to the smallest. The chain is then retracted until the frame on the rear spreader is pointing straight down. The required moment can be calculated along the axes of the switch rollers. they must form one line in a strictly vertical direction.

If you have to deal with two-suspension bicycles, then the chain setting is carried out a little differently. To do this, you need to press down on the rear swingarm so that the front sprocket cassette is removed from the rear ratchet as far as possible. In this position, we make a mark corresponding to the required chain length and remove excess links.

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Different ways to tension the chain

Bicycles are now different, with significant differences in design. To properly tension the chain on a bike, you need to know the rules that apply to your type of vehicle.

How To Tighten Your Mountain Bike Chain!!

How to know if the chain needs to be changed?

Any mechanism loses its properties over time. In bicycle components, the pins that connect the links together are subject to wear. The standard distance for pins is set to 12.7 mm. The longer the bike is used, the greater this distance becomes.

The appearance of wear negatively affects the operation of the switch, and also additionally loads other elements of the transmission.

Installing a new chain will wear out the sprockets. It happens in this way: the new mechanism is firmly held on the star, and the roller is fixed on the pin. During operation, the pin moves in the roller and increases the distance between the teeth of the star.

Experts recommend assembling every 1500-2000 km of run. This value depends on the type of bike, the conditions in which it is used and the quality of lubrication.

In order to keep your bike in perfect condition, you must adhere to the rules of its use. It is much better to detect the problem immediately, in order to fix the breakdown in time and prevent further wear.

Buying a new chain does not incur significant costs compared to other elements. That is why it is important to replace the chain mechanism in time so as not to suffer with the rest of the components in the future.

Taking care of your bike is extremely important. As one of our readers wrote, “As you look at the equipment, so it carries you!” After reading this article, you fully learned how to tighten the chain on a bicycle. Keep an eye on your two-wheeled friend, and he will delight you for a long time with his clear and durable work.

How to remove excess bike chain links?

It is necessary to shorten the mechanism when there is sagging, high loads, if the mechanism is used for a long time, or when changing sprockets.

How to shorten the chain correctly:

  • The chain is thrown onto large stars in front and behind.
  • One link breaks.
  • The caliper must be in a horizontal position, for this, the links should be tightened as much as possible.
  • The last step is to remove or add extra links.

How to make a bike chain tensioner

To save even a little, you can make a bike chain tensioner yourself. But first of all, you need to understand why you need a chain damper (aka tensioner) on a bicycle. This accessory is a protective element for bicycles. Thanks to the damper, the tension level of the chain mechanism is regulated in order to exclude the reduction of oscillation when overcoming obstacles (jumping on stones, rails, etc.). In addition, the tensioner provides protection against mechanical damage and chain slipping off the sprockets. A damper is used on bicycles with a single speed or internal shifting mechanism.

In what order the vehicles will pass the intersection?

The driver of which vehicle will pass the intersection second?

16.14. If the main road at an intersection changes direction, the drivers of vehicles moving along it must follow the rules for driving through intersections of equivalent roads.

This rule should be followed by each other and drivers driving on secondary roads.

16.14. If the main road at an intersection changes direction, the drivers of vehicles moving along it must follow the rules for driving through intersections of equivalent roads.

This rule should be followed by each other and drivers driving on secondary roads.