How To Change The Chain On A Speed Bike

At the crossroads of two technologies: methods for replacing a worn chain on a bicycle at speeds

How To Change The Chain On A Speed Bike

The main purpose of the procedure is to unhook the old chain and connect the new one together. Before you do anything, make sure how you are hooked tenaciously now. It either represents a single whole, or has a detachable link (lock) in its design. This is important, since the type of fastening determines the list of required tools and, in fact, the maintenance method.

How to install a new bike chain

Let’s assume that all the technology requirements are how to choose a chain for a high-speed bike. Completed successfully. THOSE. Before you is a part that fits the width of the rear and front sprockets and you just have to put it on:

  • Position the product so that the extruded pin is closer to you.
  • Run the chain over the large chainring in the idle direction (reverse drive pedaling) through the front derailleur.
  • Put the chain on the cassette and go around the rollers of the switches according to the diagram shown in the figure.
  • Press the pin with a squeeze.

Lock / NOT lock

So, task number 1 in the case, how to change a worn chain on a bicycle. to find out if there is a lock. This is difficult to determine on a dirty chain, so clean it. Cleaning is not necessarily in full compliance with the routine technology for removing old grease from the chain.

It is enough to wipe off the main layer of dirt from the side plates and turn the pedals in the opposite direction. The shape of the detachable link is noticeably different from others, and immediately catches the eye. In more detail, its design can be studied from the photo.

Decoupling techniques

  • If there is a lock in the chain, just open it.
  • If it is tenaciously a whole, it is necessary to press out one of the axles (pins).

How to remove a bicycle chain without a lock

First, place the chain closer to you so that it is convenient to remove it after opening and brings a new analogue to the stars. To do this, simply move the rear derailleur to the end position (smallest sprocket), and align the front derailleur with the third gear gear (largest sprocket).

Squeezing a pin out of a link is much easier than pushing it back in. Select one of the constituent elements tenaciously and issue here in any of the ways:

  • Tap with a hammer through knitting needles or a thin stud.
  • Squeezing with a hard tip, fixed on the chain release bolts.

It is more convenient to squeeze out at the lower level. After disconnecting, it is easier to withdraw tenaciously at idle, when the pedals are spinning in the opposite direction.

How to replace a chain on a bicycle with your own hands

The need to remove / install a bike arises for various reasons. Someone regularly boils it in paraffin or wax, someone decided to carry out a comprehensive cleaning in a can of gasoline, and someone came to such a state that the bicycle chain slips under load and needs to be changed. How to do this is intuitively clear, but for someone new to the operation, it is difficult to do without explanations and answers to exciting questions.

How to shorten the chain

Usually a fresh chain is slightly longer than even a tired product. If you put it on, rather than shorten it, the position of the rear derailleur will not be correct. The quality of gear shifting suffers from this.

The easiest way to calculate the correct size is to compare the lengths of the old and new tenaciously. It is not necessary to use a tape measure, just put them side by side. Combining both ends on one side on the other, we will see the discrepancy in dimensions. Extra links are pressed out according to the already outlined method, taking into account the recommendation for incomplete removal of the wasp from the hole.

Removing the lock

According to the technology of changing the chain on a bicycle with detachable link speeds, special pliers are used. In fact, you can take in the area of ​​the lock with both hands (preferably with gloves) and pull the ends tenaciously to each other.

How to change the chain without a lock on a bike with gearshift

In the absence of a lock, the replacement technology tenaciously boils down to three operations:

  • Pressing the pin out of any link.
  • Shortening a new chain.
  • Positioning and pressing in the axle on a new bike.

Lock / NOT lock

So, task number 1 in the case, how to change a worn chain on a bicycle. to find out if there is a lock. This is difficult to determine on a dirty chain, so clean it. Cleaning is not necessarily in full compliance with the routine technology for removing old grease from the chain.

It is enough to brush off the main layer of dirt from the side plates and turn the pedals in the opposite direction. The shape of the detachable link is noticeably different from others, and immediately catches the eye. In more detail, its design can be studied from the photo.

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.
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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.

How to install the chain.

Chain connection

Shimano chains require a roller to connect both ends. After installation, the excess part of the roller is broken off by pliers.
In SRAM and KMC, a special locking link is inserted between the ends of the chain, then the plates are snapped into place. For a complete connection, special pliers are used, but you can use the following method.

Rotate the pedals so that the Lock Link is in the middle of the upper aisle. Then hold the rear wheel so it does NOT spin. Step on the pedals, and the Lock Link will finally sit in place. Make sure the chain is installed correctly. Spin the bike pedals using all gears.

How to replace a chain on a bicycle with your own hands

The need to remove / install a bike arises for various reasons. Someone regularly boils it in paraffin or wax, someone decided to carry out a comprehensive cleaning in a can of gasoline, and someone came to such a state that the bicycle chain slips under load and needs to be changed. How to do this is intuitively clear, but for someone new to the operation, it is difficult to do without explanations and answers to exciting questions.

Tools for work

  • Chain squeezing;
  • Chain wear indicator (chain stretch tester)
  • Bicycle spoke;
  • Pliers;

Lock and solid chain

The locking chain is equipped with a special clamping device. It is NOT difficult to unhook and put it on. it is enough to simply Release the lock. To find it, we carefully examine the chain on both sides and find a detachable link. In principle, it will not be difficult to find it on a clean chain: a tick is put on top, which fixes the link and does not allow it to move apart. Also, the manufacturer’s inscription is usually stamped on the locking link. If you cannot find the lock for a long time, then either the chain is dirty, or it is lockless, or solid.

A bicycle chain without a lock just like that It will NOT work to disconnect: all the links on it look the same, however, and are hooked to each other too. This is a big inconvenience when cleaning, for example, it is necessary to carry out a “general cleaning” in a solvent. In the case of the lock, everything is simple. I stole it and put it in kerosene. Solid bike chain, even taken off the stars, will remain hanging on the frame.

In terms of removal, a chain with a lock is certainly more convenient than its counterpart. However, for some reason, the fastening may loosen: the tick will fly off, and the link will also come loose. There are such weak points on bicycle chains without locks, and if it is torn, then the matter is solely in its quality.

Forcing and chain wear indicator

There is a wide variety of pomace of different sizes from different manufacturers. It is worth noting that this tool is definitely a must for those who want to change the chain themselves. Chain wear can be determined using a standard ruler. But for constant monitoring, it is better to purchase a special tool. a chain wear indicator.

Removing the lock

According to the technology of changing the chain on a bicycle with detachable link speeds, special pliers are used. In fact, you can take in the area of ​​the lock with both hands (preferably with gloves) and pull the ends tenaciously to each other.

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 change a bike chain. Step-by-step instruction

The transmission elements of bicycles of most manufacturers, with rare exceptions, are compatible with each other. All you need to do is match the same number of transmission and chain speeds. For example, a nine-speed transmission would require a chain designed for the same number of speeds.

Lock / NOT lock

So, task number 1 in the case, how to change a worn chain on a bicycle. to find out if there is a lock. This is difficult to determine on a dirty chain, so clean it. Cleaning is not necessarily in full compliance with the routine technology for removing old grease from the chain.

It is enough to wipe off the main layer of dirt from the side plates and turn the pedals in the opposite direction. The shape of the detachable link is noticeably different from others, and immediately catches the eye. In more detail, its design can be studied from the photo.

Tools for work

  • Chain squeezing;
  • Chain wear indicator (chain stretch tester)
  • Bicycle spoke;
  • Pliers;

Chain measurement

Make sure the chain will behave properly when shifting into any gear and not damaging other parts of the bike. For testing, the chain must be installed on the two largest sprockets, front and rear. Even if you never ride in such a gear.

Align the two ends of the chain and identify the extra links that need to be removed. To lock the chain in this position Use a piece of bicycle spoke.

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When using Shimano chains, there should be a link with the inner plates at one end and the outer ones at the other. Chain from SRAM and KMC must have links with inner plates at both ends.

After the required chain length has been determined, remove unnecessary links. Throw the chain back onto the smallest sprockets.

Attention! On fully suspended mountain bikes, make sure the chain is long enough to compress the suspension.

At the crossroads of two technologies: methods for replacing a worn chain on a bicycle at speeds

The main purpose of the procedure is to unhook the old chain and connect the new one together. Before you do anything, make sure how you are hooked tenaciously now. It either represents a single whole, or has a detachable link (lock) in its design. This is important, since the type of fastening determines the list of required tools and, in fact, the maintenance method.

How to change the chain on a bicycle?

With Amena, a bicycle chain is an essential skill for every home mechanic. The chain is a consumable material for the transmission of a bicycle. Over time, it tends to stretch and wear out. So sooner or later the time for replacement will come.

On. The following shows the process of installing a new chain on a bicycle. The instruction is suitable for both mountain bikes and road bikes.

How to change the chain without a lock on a bike with gearshift

In the absence of a lock, the replacement technology tenaciously boils down to three operations:

  • Pressing the pin out of any link.
  • Shortening a new chain.
  • Positioning and pressing in the axle on a new bike.

Chain Care

Regular cleaning and lubrication. The best way to extend the life of your chain. Use a bike chain lubricant. We lubricate each roller. We lubricate the chain only from the inside; there is no need to be on the outside of the lubricant.

Do NOT spin the chain in the opposite direction and apply lubricant in a hurry. In addition to the increased consumption of funds, you can Overload the links. Always wipe off excess grease with a cloth. After driving in wet weather, wipe the chain dry and re-lubricate. This will prevent rust and chain stretching.

How to install the chain.

Chain connection

Shimano chains require a roller to connect both ends. After installation, the excess part of the roller is broken off by pliers.
In SRAM and KMC, a special locking link is inserted between the ends of the chain, then the plates are snapped into place. For a complete connection, special pliers are used, but you can use the following method.

Rotate the pedals so that the Lock Link is in the middle of the upper aisle. Then hold the rear wheel so it does NOT spin. Step on the pedals, and the Lock Link will finally sit in place. Make sure the chain is installed correctly. Spin the bike pedals using all gears.

Step-by-step instruction

The transmission elements of bicycles of most manufacturers, with rare exceptions, are compatible with each other. All you need to do is match the same number of transmission and chain speeds. For example, a nine-speed transmission would require a chain designed for the same number of speeds.

How to change the chain on a bicycle?

    • How to install the chain.
    • Tools for work
    • Step-by-step instruction
    • Chain Care
    • Worn links
    • Forcing and chain wear indicator

    With Amena, a bicycle chain is an essential skill for every home mechanic. Chain. Bicycle drivetrain consumable. Over time, it tends to stretch and wear out. So sooner or later the time for replacement will come.

    On. The following shows the process of installing a new chain on a bicycle. The instruction is suitable for both mountain bikes and road bikes.

    Removing the old chain

    Using the chain squeeze, dispense one of the rollers (the pin connecting the chain links) in the lower chain passes. If there is a Castle Link, then take it out. After removing the roller, carefully remove the chain from the bike.

    If one chain has been used for a long time without replacement, it may be necessary to replace the cassette.

    Chain measurement

    Make sure the chain will behave properly when shifting into any gear and not damaging other parts of the bike. For testing, the chain must be installed on the two largest sprockets, front and rear. Even if you never ride in such a gear.

    Align the two ends of the chain and identify the extra links that need to be removed. To lock the chain in this position Use a piece of bicycle spoke.

    After the required chain length has been determined, remove unnecessary links. Throw the chain back onto the smallest sprockets.

    Attention! On fully suspended mountain bikes, make sure the chain is long enough to compress the suspension.

    Installing a new chain

    Shift reverse and forward to the largest sprockets. If your bike has a clutch, loosen it. Place the chain over the front sprocket, thread the end through the front derailleur. Crank the pedals so that the end of the chain hangs down from the sprocket at a distance of about 10 cm. Pull the other end through the rear fork of the bike frame and slide the cassettes over the largest sprocket. Lower the rear derailleur down.

    Throw the chain on the floor of the guide roller, pull it through the tabs of the mechanism, turn around the tensioner roller. Gently release the gearshift mechanism.

    Worn links

    It is believed that the chain stretches due to improper driving. In fact, the chain lengthening effect is due to wear on the rollers and pins. As the chain wears down, it will damage the sprocket teeth, resulting in chain slipping. There are special tools for determining chain wear.

    Malfunction symptoms

    First of all, attention should be paid to chain malfunction on multi-speed bikes. Traditionally, the travel time is determined by the mileage, but these values ​​are too approximate, because it all depends on the conditions of cycling: road quality, gear selection, speed, load on the pedals and, accordingly, on the chainrings.

    The first signs of a bike breakdown are inaccurate gear shifting and suspicious noises (assuming the chain has NOT lost lubrication). The following method will probably help to determine the malfunction: bend it away from the largest sprocket and see the number of free teeth. If the chain leaves three or more teeth freely, then replacement is required urgently. Two prongs “warn” that wear is not far off, but you can still go by train.

    Using the same method, you can see the weakening of the chain on a single-speed bike: bend it away from the chainring and see the number of teeth.

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    Another way to measure wear is to measure length:

    • 304.8mm. Optimum Chain Length.
    • 306.5. 307.5. average wear, suitability for repair. You can still ride.
    • 308 mm. high degree of wear on both chain and sprockets.
    • More than 308 mm. damage to the entire transmission.

    Measuring Elongation requires removing the chain completely from the bike.

    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.

    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.

    Lock and solid chain

    The locking chain is equipped with a special clamping device. It is NOT difficult to unhook and put it on. it is enough to simply Release the lock. To find it, we carefully examine the chain on both sides and find a detachable link. In principle, it will not be difficult to find it on a clean chain: a tick is put on top, which fixes the link and does not allow it to move apart. Also, the manufacturer’s inscription is usually stamped on the locking link. If you cannot find the lock for a long time, then either the chain is dirty, or it is lockless, or solid.

    A bicycle chain without a lock just like that It will NOT work to disconnect: all the links on it look the same, however, and are hooked to each other too. This is a big inconvenience when cleaning, for example, it is necessary to carry out a “general cleaning” in a solvent. In the case of the lock, everything is simple. I stole it and put it in kerosene. Solid bike chain, even taken off the stars, will remain hanging on the frame.

    In terms of removal, a chain with a lock is certainly more convenient than its counterpart. However, for some reason, the fastening may loosen: the tick will fly off, and the link will also come loose. There are such weak points on bicycle chains without locks, and if it is torn, then the matter is solely in its quality.

    How to replace a chain on a bicycle?

    The chain is the key element of the bike’s transmission assembly. Sequentially passing through the teeth of the drive sprockets, it transmits torque to the rear wheel, thanks to which the bike rides. During movement, the chain mechanism is subjected to dynamic loads, which eventually leads to its wear.

    On singlespeeds, as a rule, the chain is designed for the entire period of its operation: when moving along the stars, it walks evenly and straight, without deviations. Chains are more complicated on multi-speed bicycles: there is a right angle between the front and rear sprockets, which is why it is always located at an angle to the frame. The stresses on the chain mechanism increase several times compared to parallel transmission, which leads to periodic wear. To avoid damage to the entire transmission unit caused by wear of the chain, it must be replaced in time.

    Not only do the “speed” chains need to be removed, they are often removed from single-speed bikes for periodic repairs or cleaning. How to remove the chain from the bike and put it back, we will tell you in this article.

    Fitting the chain to the bike

    To put the chain on a single speed, it is enough for all of it on both stars, press in the pin or click the lock. With high-speed bikes it will be a little more difficult:

    • Fix switches to small stars.
    • Considering the position of the tensioning rollers, put the chain on the stars.
    • Combine links.
    • Clamp the chain and press in here. If the bicycle chain is with a lock, we do without squeezing.

    After the installation is completed, it is necessary to check the course of the chain: it will rotate the pedals several times. If no sagging or obstruction is observed during twisting, then the chain is of the optimal length and is installed correctly.

    Every owner of a two-wheeled horse will be able to cope with the removal and installation of a bicycle chain. An uncomplicated and simple procedure will not take much time, but it will perfectly help on further trips!