How to chain a chain on a regular children’s bike

Adjustment on speed bikes

How to tighten the chain on a bike at speeds such as a mountain bike? For a high-speed bike, if tightening the links in the first two methods did not give the desired result, then you can try two other methods.

The first method only works for high-speed bicycles that have already traveled with a weakened spring, that is, with an old derailleur. On a new one, you simply cannot do it manually. The first step is to remove the links from the gears. Next, knock off the stopper on the switch and rotate the switch in the direction of greater spring tension.

The second method of chain tensioning on a bike at speeds is not difficult at all, but sometimes it works.

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:

  • 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. Tighten the chain until the frame of the rear derailleur points straight down, more precisely, when the axles of the derailleur rollers become in 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.

How to chain a child’s bike

Children‘s bicycles are designed in the same way as regular bikes (not speed bikes). Therefore, in order to tighten the chain on children‘s bicycles, you need:

How to tighten a chain on a bike at speeds

In relation to high-speed vehicles, there are two more ways to properly adjust the tension of the bicycle chain.

Method one for pulling up the chain on a sports bike:

  • remove the links from the gears;
  • carefully knock down the stopper on the speed switch;
  • turn the switch towards the spring tension. Thanks to this action, the part is automatically tensioned to the desired level.

Method two. just pull up the switch cables (in some situations, this method may come in handy).

These methods will perfectly cope with the problem of chain stretching.

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

When 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 has already rested on 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 Fix A Bicycle Chain And Handlebars

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 the 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.

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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 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.

How to tighten the chain on a regular bike

This instruction must be mastered the first time, so that driving a vehicle is only a pleasure.

  • Turn the bike over with the wheels up. We put it so that it has no chance of falling. It is advisable to fix it.
  • We loosen with a wrench the fastening nuts on the wheel, which is located at the back.
  • We set the required degree of tension and sagging (to do this, you need to move the wheel back a little).
  • Now it should not sag more than 5 mm.

Diagnostics

First you need to figure out whether the mechanism needs to be tightened? On ordinary bikes, it is not difficult to understand everything. The method for adjusting the chain on a bicycle is simple enough.

  • Turn your two-wheeled vehicle upside down, pull the mechanism down with your fingers until it stops. (If the chain stretches and sags by no more than 10-15 mm, then there is no need to pull up).
  • If the tension of the bicycle chain does not lower it below 5 mm, it is necessary to immediately loosen.

Important! If the chain is loosened, it can fly off. If tight, it will be difficult to pedal.

Ordinary bike

To tighten the chain on a regular bike, you need to set the transport with the wheels up. This is the most comfortable position for loosening the rear wheel nuts. When unwinding, it is easy to set the optimal sag and tension of the bike chain. You need to move the wheel along the grooves. The mechanism is fastened only in a parallel position of the axis relative to the carriage shaft. The correct slack is 5 mm. When tightening the chain, there is a difficult rotation of the pedals. Insufficient tension will cause the mechanism to kick off. Sometimes there is a tight stop of the wheel in the edges of the grooves and the extra links are removed.

How to tighten a chain on a bike at speeds

In relation to high-speed vehicles, there are two more ways to adjust the tension of the bicycle chain correctly.

Method one for pulling up the chain on a sports bike:

  • remove the links from the gears;
  • carefully knock down the stopper on the speed switch;
  • turn the switch towards the spring tension. Thanks to this action, the part is automatically tensioned to the desired level.

Method two. just pull up the switch cables (in some situations, this method may come in handy).

These methods will perfectly cope with the problem of chain stretching.

Learning to adjust the chain drive correctly

On the simplest single gear bike, tensioning the chain is all it takes with one wrench, just loosen the two rear wheel nuts. Most often this key is either 17 or 15.
First, the bike needs to be turned upside down, and then slightly loosen the two nuts on the rear wheel. It is not necessary to unscrew them completely. After the nuts have been loosened, the wheel must be moved back a little. At the same time, there is no need to hammer in various wedges and insert something between the frame and the wheel, the tension of the chain system should occur with minimal effort, under the wheel’s own weight.

Attention! Tighten the nuts gradually, while observing that the wheel is clearly in the center of the fork. Otherwise, the sprockets will be in a different plane, which will lead to the chain collapse.

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Method 1

Bend the bicycle spoke with a spiral and place it on the transmission. It is necessary for the spiral to pull back on the bike chain. This is an old and uncomplicated method, where the soothing does not look very aesthetically pleasing.

Method 2

The material used is an aluminum or duralumin plate 8–11 mm thick. The tensioner is manufactured using:

  • tap size М101 with its holders;
  • file with core;
  • hacksaws with a vice;
  • sandpaper;
  • technical oil;
  • hammer with a drill;
  • drilling machine or drill;

With a marker, an old part is outlined on a metal workpiece and a hole is drilled in the center. Then they take a hacksaw, with which they saw off the workpiece and grind it with a file. An alternative option is to make a groove along the shaft diameter, intended for subsequent insertion into this groove. The installation section of the groove in the bicycle frame should be 4 mm wide on one side, 8 mm on the other.

The hole is made with a drill of slightly smaller diameter than the diameter of the hole itself. Especially from soft metal. For perfect accuracy, it is advisable to use an electric drill, not a manual one. The thread is cut by means of forward-return movements.

Diagnostics

First you need to figure out whether the mechanism needs to be tightened? On ordinary bikes, it is not difficult to understand everything. The method for adjusting the chain on a bicycle is simple enough.

  • Turn your two-wheeled vehicle upside down, pull the mechanism down with your fingers until it stops. (If the chain stretches and sags by no more than 10-15 mm, then there is no need to pull up).
  • If the tension of the bicycle chain does not lower it below 5 mm, it is necessary to immediately loosen.

Repairing a Kid’s Bicycle Chain. Quick Fix on Tightening / Resetting a Bike Chain by DIYNate

Important! If the chain is loosened, it can fly off. If tight, it will be difficult to pedal.

Reasons for loosening chains

Before you begin to tighten the chain, it is important to understand one truth. It’s just as bad for a bicycle when the chain is too tight, as it is when the chain is too tight. The surest way to check the chain tension is to push it from top to bottom, while the normal level of sagging should not be more than 1-1.5 cm.If this value is far beyond its limits, the chain system must be tightened.

Another symptom that should alert the driver is if the chain began to slip.

To begin with, the problem of sagging is most often encountered by owners of regular single-speed bicycles. The thing is that here the chain is not able to tension automatically, as in mountain or other similar types of bicycles.

But why do the chains start to sag? There are two reasons for this. Firstly, any chain has the ability to stretch, despite the fact that it is made of metal. At the same time, cheaper options stretch more, but expensive branded products practically do not have this property.

Secondly, the chain system can weaken if the rear wheel nuts were not tightened well, in this situation, under load, it shifts slightly forward and the tension of the chain mechanism weakens.

Despite its simplicity, the motorcycle chain requires regular maintenance and checking of the tension.

Tension

There are two main mechanisms for regulating chain slack, which are used by different manufacturers. The complexity of the procedure in both cases will be approximately the same, but it is worth paying attention to the main recommendations related to tension. The durability of the transmission, as well as other critical components of the motorcycle, will depend on the correct execution of such an operation.

Tensioning mechanisms

The chain must be properly tensioned so that it can move freely on the bar by hand. To adjust the tension, the classic type of tensioner is used, which is used in budget-class tools. Such a tensioner is a threaded bolt and an adjusting component with a classic or lateral arrangement.

chain, regular, children, bike

Quality models of chainsaws are equipped with adjusting mechanisms, with the help of which tension can be carried out with a single movement of the lever or by turning the adjusting dial. If a chain tensioner is used to tension the chain, the tightening torque is fixed with a lock nut. Otherwise, the chain tension is fixed by blocking the bar in a given position by installing the cover. Both methods allow you to fix the product securely in a given position.

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Another option for the location of the adjustment screw

It is important to know! It is strictly forbidden to adjust the chain tension on the chainsaw in a hot state. The product must be refrigerated, otherwise the procedure will not be performed correctly.

It is necessary to learn in more detail how the chainsaw chain is properly tensioned, since this moment is very important, the performance of the tool and human safety depend on it.

About self-tensioning the chain on a chainsaw

A chainsaw, like any other tool, requires special care. In particular, a chainsaw element such as a chain or a cutting product needs care. The chain needs not only sharpening, but also the correct tension. How to tension the chain on a chainsaw, every tool owner should know.

Eccentric mechanism

Some manufacturers suggest using a more sophisticated but reliable eccentric mechanism. It is absolutely not difficult to work with it, but you will need more skill than in the option described above. Most often, the eccentric mechanism is used to regulate the chain tension in one-sided cantilever pendulums, although there are exceptions.

It is very important to know how to make the correct adjustment. you do not need to unscrew the bolts or locknuts for this. Only a large hexagon needs to be prepared from the tools. its size is determined by each manufacturer individually and may differ depending on the specific model of motor vehicles. By turning the adjusting screw, you move the axle along the eccentrically drilled hole, changing the degree of its tension.

Unfortunately, we often have to deal with cases of oxidation of the adjusting mechanism. especially if the motorcycle was operated in a maritime climate. In this case, you have to use brute force. To turn the hex, hit it with a rubber or wooden mallet. Be careful, as too strong a blow can break the threads of the mechanism, after which you will have to repair the pendulum.

Pulling force: tensioning the chain. Behind the wheel magazine

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The life of the chain on the same motorcycle can vary significantly depending on the conditions of use and maintenance. Harsh acceleration, rear wheel riding and mud reduce it quite noticeably.

The chain drive is one of the most heavily loaded components in a motorcycle. In powerful motorcycles, the forces generated in it reach several tons. And when accelerating and when braking, they change direction. Often this happens very abruptly, and at this moment the chain is under severe stress. If the chain is loosely tensioned (sags strongly), then at the moment of the load change, this excess supply of the chain will first be selected, and then, when its free play ends, a sharp blow will occur, harmful to all elements of the transmission. By the way, it is unpleasant for the driver to control such a motorcycle twitching at any opening and closing of the “gas”, especially in a sluggishly creeping traffic jam. The second disadvantage of the sagging chain is that, with a weak tension, its unloaded shoulder tends to move in a straight line by inertia, which is why it imperfectly falls on the teeth of the sprocket, thereby wearing them out and itself.

Is it possible to pull the chain so that it does not sag