How To Put A Chain On A Bicycle Wheel

KT-305 how the hub with a foot brake works, maintenance, mechanism device

Greetings, dear friend! I know why you came here. broke a wheel on your favorite bike after a good ride? Well, who does not happen! Thorns, glass, nails, and also other evil spirits come across to us on the road and sometimes presents surprises in the form of another puncture. But do not despair, in this article you will learn how to properly glue a bicycle camera, because there is nothing complicated about it.

Here you were driving yourself calmly enjoying active rest and the surrounding landscapes, drove onto a country road, without even thinking about hidden “surprises” cunningly awaiting you somewhere down there. And now you drive yourself on, and at this time a thorn stuck into the wheel, just like some kind of leech. After a few kilometers, or maybe meters, you begin to notice that something cannot be done with the bike. it has become harder to pedal, control has deteriorated. Well, it’s sad, you have a puncture! I hope you DID NOT forget to bring your spare camera. For it rolls the great will have far.

What to deviate from the lyrics and move on to practice. What if you puncture your camera? Returning home immediately inspect the tire of the wheel on which the puncture occurred. Most often, the thorn remains sticking out in it. If you find this infection, then carefully pull it out with tweezers, because if you break off a thorn with your fingers, it will be much more difficult to pull it out. Ok, done! Then we will act with you according to the Step-by-step instructions suggested below.

After you take out the camera, be sure to check the inside of the tire for any remaining thorns. To do this, pass the fingers of both hands in a circle along the inner surface there may be small thorns, which are not always visible from the outside.

How it works in conventional sealant:

The sealants existing on the market today are based on rubber dissolved in easily evaporated solvents. When the composition comes into contact with the open air, the solvent evaporates and, as a result, the rubber hardens. This removes the puncture. The problem with this approach is that, due to natural diffusion, the concentration of the solvent in the chamber decreases within 3-6 months, the sealant thickens and ceases to perform its functions. In fact, the cyclist is faced with the fact that He does not remember exactly when he filled it in, and does NOT know when the sealant will stop working. As a result, according to the law of meanness, when there is no spare camera, glue, patches with you, you will have to walk home

Anti-puncture tires.

You can think of various ways to protect your tires from ribs, the smartest way is to replace tires with anti-puncture ones. Various tire manufacturers use their own, almost secret, methods of how to create tires that are strong enough to resist punctures. Schwalbe is famous for its Marathon touring tires, which provide excellent puncture protection. For road bikes, there are also excellent tires: Continental Grand Prix 4 Season, Panaracer duro protex.

But no matter what you do, no protection can guarantee absolute puncture protection. Only luck can help if the tire hits a protruding nail, screw or other too evil obstacle on the road. You should always be prepared that a puncture can happen and know how to act in this case.

So, we did NOT save ourselves, no matter what methods we came up with for protection. The wheel is flat. The first thing to do is, Inspect the wheel to see if something is sticking out of it. For example, a nail might stick out. Then, carefully remove the item from the tire. If nothing strange on top of the tire is noticeable, remove the wheel from the bike. Then, take 2 bead blades. And start removing the tires from the rim. It is enough to remove one side. Remove only the tube nipple from the tire, let most of it remain in it. Start inflating the tires, if the puncture is large, you will hear where the hole in the chamber has formed, you can hold your hand and feel where the air is coming from. Having found the puncture site, carefully examine the corresponding place in the tires, very often, there you can find the object due to which the puncture occurred. Remove this foreign object from the tire, or make sure it is not there. Tires can cut: a piece of glass, wire, a sharp pebble, which often get stuck in tires. If they are not pulled out, then after repair, a new puncture will form. If you have a spare camera with you, you can immediately put it on, put on your tires and inflate the wheel. In the absence of a spare camera, you need to have a set of repair tools to seal the camera. We need: glue, patches. Sandpaper and degreaser (optional, but not required). You need to clean the camera at the puncture site, then apply glue, wait as long as required, according to his instructions, apply a patch to the puncture site and press firmly. Special glue dries in about 5 minutes.

What is a sealant?

Sealant is a substance designed for use in bicycle tubes. As the wheel rotates, centrifugal force distributes the sealant throughout the chamber, forming a protective layer. The sealant clogs punctures and cuts quickly enough. there is a need to remove the wheel and put patches!

Sealant will NOT remove side cuts, rim damage and air-etching nipples.

  • Patching punctures up to 3mm in diameter;
  • Remains liquid inside the chamber for several years;
  • Non-toxic, non-flammable, and does not evaporate.
  • Contains anti-corrosion additives to preserve rims
  • Self-glue cameras are good for patching.

CST chambers use an environmentally friendly liquid containing synthetic fibers and a blend of polymers with additives to quickly seal. Which have the ability almost instantly and, most importantly, reliably seal punctures.

The main difference between CST sealant and chemical. Compositions are similar to their use in that CST creates a mechanical, not a chemical plug.

Summarizing

Congratulations, you learned how to glue a bicycle tube yourself! As you can see, there is nothing complicated here and even a seven-year-old child can do this. Maybe someone will tell you that you need to clean the camera with sandpaper before applying glue and this person will be right. Also, if he tells you that you need to apply glue only to the camera, and not to the patch. Previously, I also cleaned with emery, but then I noticed that without it, everything is glued with a bang. And I apply glue in the old fashioned way on both glued surfaces for reliability, as my grandfather taught. In general, try it, you will succeed! Also, be sure to see mine. Which I shot especially for you, so that you understand everything as best as possible. In your result, write to me in the comments below. That’s all for now!

READ  What To Do If You Have A Punctured Wheel On A Bicycle

Adjusting chain tension on bicycles without gears

For bicycles to function flawlessly without speeds, their chain need not be taut. It is necessary to ensure its free sagging for a length of up to 5 mm. And to pull in this way, you need to perform a certain set of actions in the correct sequence:

  • The vehicle is turned upside down.
  • Loosen the rear wheel. unscrew the nuts or fixing eccentrics.
  • Adjust the chain slack to the required value. To do this, you need to carefully move the wheel along the inclined grooves (dropouts).
  • At the end of the adjustment, the wheel should be fixed to its original position again. In this case, the wheel should be parallel to the carriage shaft.

If the chain is too tight, it will be hard to pedal. And the elements of the chain drive will very soon become unusable. It is also bad if the bike chain is too slack. She will simply jump off the stars at a certain moment and it will be impossible to go further.

When the wheel literally rested on the dropouts and there is absolutely nowhere to move it further, but the bicycle chain is dangling, you will have to remove a couple of links from it. In all likelihood, it was stretched or not at all the size for a particular model.

Adjusting the chain tension in bicycles at speeds

The tension of the chain on a large one with a parallelogram derailleur (rear) is determined exclusively by the spring stiffness of the derailleur itself. But the chain, which turned out to be too long, will begin to beat in the frame, since the tensioner will no longer be able to compensate for its slack.

It should be borne in mind that insufficient chain length leads to wear on the main transmission parts, since it significantly complicates their switching. And especially the owners of two-suspension bicycles should pay attention to this.

When installing a new bike chain on high-speed models, the chain should be shortened. Several links. But to determine how many specific links need to be removed, there are two possible methods:

  • Pull the chain at the front and rear over the largest sprockets. And then pull the chain, pull forward and the rear derailleur to the limit. It remains to add 2 links, and you get a chain of the optimal length.
  • Or the chain needs to be transferred from the front to the largest sprocket, from the back to the smallest. And pull the chain until the rear ejector frame is NOT in the “straight down” position and the derailleur rollers are not in a horizontal line. This is the optimal chain length, the excess must be removed, and the missing must be added.
How To Put A Chain On A Bicycle Wheel

On two-suspension bicycles, adjust the chain (or rather, adjust its length) more correctly, crushed the pendulum. to a position at which the front star cassette will be as far away from the ratchet as possible. The resulting chain length is measured-noted, and all unnecessary is removed.

Link removal

Conventional speedless bikes are equipped with collapsible chains, one of the links of which has a special lock. But on professional bikes, one-piece chain structures are installed, all the links of which are perfectly riveted.

However, disassembling a one-piece bicycle chain is also easy. And this can be done in one of two possible ways:

  • Grind pin heads on one of the chain links with sandpaper;
  • Or Using a universal tool. squeeze.

By the way, pomace is not called “universal” for nothing. It can not only squeeze out the pin, but also reliably fix the newly assembled bicycle chain. Indeed, in the pomace (well, at least most of them) there are a couple of special functional and technological grooves. And one of THESE grooves the pin is pressed out of the roller, and the other is pressed in. As for the installation place, which is located on the squeeze a little further from the pressing screw, it is intended for riveting the chain pin itself.

How to chain a bike

The chain is one of the most important structural elements for the movement of the bicycle. And its service life depends on the regularity and quality of care. An indicator of the fact that something is wrong with the bike chain is crackling and squeaking when moving, as well as slipping it on the ratchet.

In principle, it is normal for the chain to wear out over time. And chain stretching is a visual sign of wear. The fact that the chain has become unusable can be felt even tactilely. In the normal position, this part sags slightly (by 10 or 12 millimeters), and if you pull it slightly, then it will give in for another 10-15 mm. True, this method is relevant only for models in which there is no high-speed switching or there is a planetary type gear.

Slipping like a chain drive defect

Every cyclist is familiar with the problem of chain slippage. The chain will stretch over time and the tension will weaken. In addition, chain elongation leads to quick wear of the bike sprockets. It would seem that what is easier. you just need to remove 2 links. But the “trick” is that you can do this only once, and then you need to change the chain.

And further. A new chain on an old ratchet is not ice at all. Slipping on small sprockets will probably remain. So you need to change the ratchet too.

Adjusting chain tension on bicycles without gears

For bicycles to function flawlessly without speeds, their chain need not be taut. It is necessary to ensure its free sagging for a length of up to 5 mm. And to pull in this way, you need to perform a certain set of actions in the correct sequence:

  • The vehicle is turned upside down.
  • Loosen the rear wheel. unscrew the nuts or fixing eccentrics.
  • Adjust the chain slack to the required value. To do this, you need to carefully move the wheel along the inclined grooves (dropouts).
  • At the end of the adjustment, the wheel should be fixed to its original position again. In this case, the wheel should be parallel to the carriage shaft.

If the chain is too tight, it will be hard to pedal. And the elements of the chain drive will very soon become unusable. It is also bad if the bike chain is too slack. She will simply jump off the stars at a certain moment and it will be impossible to go further.

When the wheel literally rested on the dropouts and there is absolutely nowhere to move it further, but the bicycle chain is dangling, you will have to remove a couple of links from it. In all likelihood, it was stretched or not at all the size for a particular model.

Chain Removal Situations

Maintaining your bike is very important, and there may be several reasons for removing the chain:

  • Deep cleaning. it is recommended to remove all elements from time to time and clean from grease and accumulated abrasive.
  • Link damage and replacement.
  • Replacing a worn chain.
  • Change in length with a new combination While, for example, on a mountain bike.

Home wear is primarily determined by stretching. An overstretched chain is cause for concern, as link misalignment will severely damage the sprockets and can be hazardous to derailleurs.

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It is quite difficult to notice wear by eye, and to determine it there is an indicator. the length of 24 links:

  • If it is 305 mm (304.8 value for a new set), everything is in order;
  • 306.5-307.5 mm. it’s time to change;
  • 307.5 mm. if the bike was still in use with such wear, then most likely the entire set of sprockets is damaged;
  • 308 mm. the value of the damaged transmission.

Objectively, it is recommended to service the transmission every 500 kilometers, but this value is NOT Fixed, since 50 kilometers on rough terrain with an abundance of sand and mud in wear can correspond to another thousand on clean city roads.

Some people prefer to cut the chain, but the stretching is usually evenly distributed, and the links can still damage the stars, which can no longer be repaired.

The algorithm of actions when putting on the chain is approximately as follows.

  • Turn the bike upside down, place it on the saddle and handlebar, or Lift it so that the rear wheel rotates freely.
  • If the bike has a bicycle guard, it is better to remove it. This will make it easier and more comfortable to reach the chainring. If you are too lazy to shoot, or you can already reach the asterisk. it’s up to you.
  • Place the chain completely over the rear sprocket. (If you have not removed the protection, then it may be more convenient to completely put it on the front sprocket).
  • Place the chain over the chainring in the direction of rotation and pedal forward in the direction of travel. When the pedals are rotated, it itself is thrown over the remaining teeth.

Here you need to understand that if the bike is upside down, then the chain is thrown onto the lower part of the sprocket (in relation to you) and, scrolling the sprocket by the pedal clockwise, we put it on the front sprocket entirely. If you start to throw the chain over the top of the sprocket in relation to you, this will not be able to pedal. after all, in fact, you will have to press the brake.

If the bike is in the normal position (wheels down), then again throw the chain on top of the sprocket and pedal clockwise. as if you were driving forward.

Everyone is wearing a chain.

Process

Let’s take a step by step how to remove the chain from the bike:

  • We clean the links from dirt. it will interfere with each subsequent step.
  • Removing the rear wheel is NOT required, but it’s much easier to work without it.
  • Extrude the pin (the metal cylinder that closes each link) using a squeeze.
  • Disconnect equals link.
  • Remove extreme links from switches.

The reverse sequence is the same. put the chain in place and assemble the structure back, rivet the pin with a squeeze, and rotate it in the opposite direction.

Adjusting the chain tension in bicycles at speeds

The tension of the chain on a large one with a parallelogram derailleur (rear) is determined exclusively by the spring stiffness of the derailleur itself. But the chain, which turned out to be too long, will begin to beat in the frame, since the tensioner will no longer be able to compensate for its slack.

It should be borne in mind that insufficient chain length leads to wear on the main transmission parts, since it significantly complicates their switching. And especially the owners of two-suspension bicycles should pay attention to this.

When installing a new bike chain on high-speed models, the chain should be shortened. Several links. But to determine how many specific links need to be removed, there are two possible methods:

  • Pull the chain at the front and rear over the largest sprockets. And then pull the chain, pull forward and the rear derailleur to the limit. It remains to add 2 links, and you get a chain of the optimal length.
  • Or the chain needs to be transferred from the front to the largest sprocket, from the back to the smallest. And pull the chain until the rear ejector frame is NOT in the “straight down” position and the derailleur rollers are not in a horizontal line. This is the optimal chain length, the excess must be removed, and the missing must be added.

On two-suspension bicycles, adjust the chain (or rather, adjust its length) more correctly, crushed the pendulum. to a position at which the front star cassette will be as far away from the ratchet as possible. The resulting chain length is measured-noted, and all unnecessary is removed.

Slipping like a chain drive defect

Every cyclist is familiar with the problem of chain slippage. The chain will stretch over time and the tension will weaken. In addition, chain elongation leads to quick wear of the bike sprockets. It would seem that what is easier. you just need to remove 2 links. But the “trick” is that you can do this only once, and then you need to change the chain.

And further. A new chain on an old ratchet is not ice at all. Slipping on small sprockets will probably remain. So you need to change the ratchet too.

Reasons why the chain flies off the stars on a bicycle:

  • Weak tension.

Most common reason related to single speed and multi speed bikes.

How to check the tension of a bike? Its sag in a single-speed bike should be 10-15mm in the center between the sprockets.

More details about this are described in the article “How to correctly determine the length and tension of a bicycle chain” and here we will NOT repeat ourselves.

Curvature of one or more chain links. Usually one link is enough. It occurs from impacts during careless handling or falling of cyclists.

Single-speed cycling is more robust and such problems are extremely rare there. In more gentle multi-speed ones, this happens, but it also cannot be said that very often. There is no way to treat it. It is necessary to either remove or change the link, if the length of the chain allows, or replace it all. If the chain is already partially worn out, it is better to immediately change it to a new one.

Aligning the link with a hammer on an anvil or pliers is unrealistic. Ideally, the Ego cannot be aligned directly, but in this form it will still accelerate the wear and tear of the sprockets.

Deformation or wear of the sprocket teeth in the system or cassette.

Deformation can only occur from impacts, and wear, especially on bikes with gear shifting, is a natural and inevitable process.

In both cases, it is better to change the sprockets, and if they are not the newest ones, there is a reason to replace the entire cassette at once.

I would like to explain something else. Re-insert curved sprocket teeth “with the help of a hammer and some kind of mother “business, at first glance, is simple and obvious, but not rewarding and often useless. Although the craftsmen do everything, but you will be able to ride so much later, so think for yourself. Ideally, it will NOT work out exactly: this means that the wear rate of the chain will increase, and the risk of dropping it from the sprockets will remain.

The chain is severely stretched.

This is very rare on single-speed bikes, but common on multi-speed bikes. How to correctly determine chain wear is described here and we will not repeat ourselves.

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Front or rear derailleur incorrectly configured.

This only happens on bicycles with gear shifting. The problem manifests itself when, when pedaling, the cycle itself jumps to another chainring. In this case, you need to set the switches correctly. Usually this is done with two adjusting bolts, designated by the letters L and H. But we will NOT consider all the nuances of this process in this article, especially since there are many materials ands on this issue on the network.

How to put a chain on a bike

Tools

  • Key for removing the rear wheel;
  • Pliers for holding segments and pin;
  • Forcing. a device for pressing out pins, without a lock. the most important tool in the process.

How to put on the chain lock correctly. 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 connecting links (pin). You can squeeze out a pin without a tool, right in the field # 8212; put the chain on the edge of a solid object and tapping here with a thin knitting needle.

Unfortunately, this method will NOT allow you to assemble the chain back, because there will be nothing to press the pin in. Therefore, to remove the bicycle chain you need to have a special tool # 8212; squeeze, it is best to take a multitool, which includes all the basic bicycle keys, including the squeeze. I have this. Very satisfied.

The chain link must be placed on the squeeze so that the pin is directly in front of the release axis of the tool. Then just # 8212; twist the handle gently 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 abusive words to push it back.

Below. Where you can see 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 Velomaster because of some minor problem with the transmission.

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How to change the chain on a bicycle

How to determine chain wear?

After making sure of the need to periodically change the circuit, you should proceed to explaining the process itself. First of all, you should learn how to determine the moment when the chain needs to be replaced, because it is difficult to keep track of the mileage systematically. The most accurate way to determine the degree of wear is to measure the distance from the center of an arbitrary pin (the axis connecting the links) to the center of the twenty-fourth pin after it with a simple ruler. This distance should be 304.8-306.4 mm. If the measured distance exceeds the recommended distance. The chain needs to be replaced.

Opening the lock and pressing the link axis

It is quite simple to open the lock: using a screwdriver or other object (for example, a knitting needle), pry on the Pliers. The main thing here is not to damage it, or even better. not to lose it, otherwise it will NOT work to fix the chain later. Further, disengaging the entire link. Everything, the chain can be removed and you can do whatever you want with it: clean it, throw it away or shorten it. However, we’ll talk about this a little later.

A solid chain can be disconnected only with a special tool. a squeeze. With its help, it will be possible to easily disassemble the link without damage. The procedure is simple, but there is no need to rush:

  • First, select the link for disassembly.
  • We insert the chain into the position of pressing out and pressing in the pin (link wasps).
  • We tighten the screw with the handle and take it out here. Extrusion direction. towards the pressing screw, that is, towards yourself.

You should not completely remove the pin, since it will not be easy to return it later.

The squeeze loosens a little, so when you re-disconnect, you should choose another link.
Pressing the axle into the link is carried out in the opposite order: connect the adjacent links together and the pin will hang with the screw.

Elimination of defects

A common form of wear is chain sagging when chain length increases back to its original length. Previously, the critical values ​​of the length of the bike were considered, at which it cannot be used. Everything is correct, but the chain cannot be thrown away immediately, but it can be repaired. With prolonged loads, the wasps loosen, which causes longitudinal and lateral expansion. It is impossible to eliminate the transverse, but it is quite possible to tinker with the longitudinal.

It is necessary to remove unnecessary links in such a way that the chain calmly, without tension, passes over a large star. With the help of a squeeze, excess links are removed, the axial shafts are completely pulled out from the removed elements. The main thing here is not to make a mistake and NOT to pull out too many links.

If you have to ride with an extended chain, then in order to avoid its falling off, you can install the so-called chain damper. parts that prevent the chain from flying off when driving. There are several types of such devices:

  • Roller with two clips.
  • Wide rollers.
  • Frame (or rollerless).

Using the Pacifier as protection is fine, but it would be better to consider changing the chain.

»How to dress correctly. Why is it necessary to change the chain?

It is recommended to change the bicycle chain every one and a half to two thousand kilometers, since it is subject to a lot of wear and tear, specifically. Stretches. This is not surprising, since a huge load falls on this part of the transmission, a large longitudinal force, which leads to the removal of the chain elements from each other, which entails a number of unpleasant consequences. This is, first of all, the slippage of the chain, which will occur when a large load is applied to the connecting rod. Thus, it will be quite difficult to develop a high speed on a bicycle with a worn chain, and even on steep climbs you will have to forget.

The second unpleasant consequence of chain wear will be difficult gear shifting. When you try to transfer the chain from one sprocket to another, it will jump off, and not having the ability to rigidly fix on the teeth of the sprocket. Therefore, all the advantages of a bike with a lot of speeds come down to comments.

If the listed problems are not so terrible for the everyday use of a cheap bike, then professional athletes and advanced amateurs lose most of the advantages of their expensive, sophisticated bicycles.