How to Remove the Sprocket from the Rear Wheel of a Bicycle

Table of Contents

Bicycle rear sprocket

It often happens that the hub requires lubrication or the rear wheel sprockets need to be replaced. The repair process is easier to carry out with remove the cassette. This way things will go faster and more accurately. Of the tools you need:

    puller;

  • whip;
  • key of the right size.

Device

An inexperienced user may confuse these two parts, but their difference is that the cassette stars have a minimum diameter of 11T, while the ratchet has a minimum diameter of 14T. To replace the rear chainrings of the bike, you must remove the entire cassette completely.

The ratchet of the rear wheel of the bicycle has several driven stars, which are connected by a freewheel hub. The ratchet is considered not a very durable and reliable component; axle breakages often occur due to imperfect design. The ratchet can be removed for repairs in the same way as the cassette.

The efficiency and functionality of the bike depends on the rear wheel hub. The part has several components. If the stroke is heavy, then there is probably a problem and the cone is damaged. To eliminate faults, unscrew the nuts with a wrench and remove the wheel. When regularly inspecting the technical condition of the transport, pay attention to the bushing cone, clean and lubricate parts and bearings. This detail is very important, it organizes the transmission of the transmission to the wheel from the pedals, as well as several other important tasks.

How to remove?

First of all, remove the wheel. Turn the bike upside down with the wheels and unscrew the nut on the axle with a wrench. In some cases, for example, a sports bike or mountain bike, an eccentric clamp is needed. Simple models do not require a special approach and tool.

The rear sprockets are attached to the ratchet with a special nut (slotted). This very nut must be unscrewed with a puller and a wrench. The latter must be appropriate in size. Unscrew the nut clockwise and use the whip. Requires a puller to be inserted into the spline nut in the rear sprocket of the bike.

We carefully put the whip on a large diameter sprocket. Holding the cassette, turn the puller with the key. This requires some effort. After unscrewing the nut, remove the cassette. The rear sprockets of the bike can be independently positioned on the ratchet. It is required to remove all parts, small sprockets, washers, carefully and carefully. This is to avoid confusion of elements. Then the cassette and plastic ring are removed. After completing the replacement of worn parts, all components, including the sprockets, are assembled in order.

Remove the sleeve

Removal of this part is done after detaching the cassette. It is best to start the process on the left side. Next, the boot, locknut and cone are removed. Then you can find washers, the number of which depends on the type of bike. It is very important to remember exactly the location and order of finding all the parts. Now the stage begins in which the cone is carefully unwound. If the grease is in poor condition, it is necessary to remove the bearings and inspect them. The presence of rust, dirt and other troubles indicates the replacement of parts. With this option, good parts must be put in place before lubrication. With a careful approach to work, the bike will function properly and accurately. Removing the bushing and other parts is not difficult, but it is important to remember the order of their location.

How to remove sprockets from the rear wheel. How to change sprockets on a bike?

The bicycle is becoming more and more popular nowadays. This is due either to paid parking and the high cost of gasoline, or to the currently fashionable healthy lifestyle.

But almost everyone loves to ride a bicycle, but not everyone knows how to properly care for it. Naturally, over time, parts fail and they should be replaced with new ones or serviced.

As part of this article, we will talk about bicycle sprockets and how you can disassemble and care for them.

Why you need to change sprockets on a bike?

The sprocket on a bicycle has one of the main roles that affect ride quality and speed. During the use of a two-wheeled vehicle, a load is exerted on all its component parts.

Replacing the sprockets is essential for proper function and gear shifting. If you do not repair parts immediately after damage, there is such an option that broken parts will accumulate and repair will be quite costly, in some situations it exceeds the cost of the bike itself.

Bicycle sprocket design

The mechanism externally has several stars of different sizes, which are fixed with a bushing. After that, everything is connected with a lock nut.

Asterisk options:

  • The usual version is that the stars are connected to each other by a plastic spacer;
  • Spider cassette. cassettes made in the form of stars, fixed on an aluminum frame;
  • On several spiders. devices that have a high cost and are usually installed on professional and expensive models. The appearance has 2 spiders, which are connected by sets of stars;
  • X-Dome is a monolithic system that connects the drum to the lid on the opposite side;
  • OpenGlide. Most Relevant for Road Bikes.

How to remove sprockets from the rear wheel of a bicycle?

It is absolutely not difficult to disassemble the device for replacement, but you should be careful and have a couple of free hours in stock.

In some situations, the disassembler initially spends 15 minutes, and another person without the necessary skills can handle it in 1-2 hours.

That is why it is difficult to answer the question of how much time can be spent on a laborious process. In most, all stars have the same parsing method, since they have almost the same structure.

Helpful hints for parsing:

  • How the parts are removed, in this order they should be installed. This advice will help from confusion and waste of extra time that can be spent remembering where a certain detail came from;
  • After parsing, every detail needs to be inspected, perhaps it does not require replacement, but a banal cleaning is simply necessary.

Required tools

In order to remove the sprockets from the bike, you must:

  • A puller suitable for the slotted nut and circlip;
  • Whip. a metal key, consisting of 10-20 links;
  • Adjustable wrench.

Procedure

Step-by-step instructions for parsing:

  • The bike is installed with the wheels up and is in a stable position. The bike must stand on a flat surface and not carry out additional movements that can adversely affect the removal of parts;
  • We remove the wheel located at the back, this can be done using a wrench of the appropriate size. The chain for parsing the star is removed in order not to interfere;
  • With a whip we fix the cassette in one place, we untwist the cassette itself using a puller put on the nut;
  • After that, we remove the plastic ring, which serves as a kind of protection and establish a further front of work (directly install a new one or try to clean and lubricate the parts).

How to replace a sprocket on a bike?

Replacing the sprocket should start with removing the old one, respectively, only then start the installation. If an old part is installed, it must be cleaned and lubricated, only then install.

In the case of a new one, you need:

  • We put on a protective plastic ring;
  • If the stars themselves are not fastened to each other, then they should be put on one at a time, starting with a large one and ending with a small one. We install small rubber pads between the stars;
  • We screw it with a nut, this must be done directly with a wrench. Twisting is carried out according to the hour hands;
  • We fix the nut and check the movement of the nut.

Caring for bike sprockets

Needless to say, all mechanisms require maintenance, otherwise they will quickly fail. Cleaning the transmission from dirt as it gets dirty will significantly extend the life of the part.

You can clean the bike structure according to the following principle:

  • Release the brake and remove the rear wheel;
  • Inspect the inner cassette for dirt. If the dirt is strong, then without removal it will not be possible to clean, in the case when the dirt is minimal, then you can clean it directly on the bike;
  • Use coarse-bristled brushes for cleaning, but they should be small enough to get into hard-to-reach areas. An old toothbrush that is not planned to be used for its intended purpose is suitable for such cleaning;
  • Initially, a rag should be dipped in kerosene and only after that start removing dirt from the sprocket;
  • After cleaning, apply grease to the brush and wipe over the teeth. Then install back.

In order not to change the asterisks, you should constantly carry out proper care and diagnostics. Spending a few minutes of your time once a month to lubricate the sprockets, you can protect yourself not only from large costs, but also wasting extra time.

Therefore, it is much easier to take care of in a timely manner than to repair your bike, especially if you use it often enough.

If a breakdown still happened, you should not be upset, but make every effort to fix it yourself.

How to remove rear sprockets from a bike

The bike drivetrain requires periodic maintenance. The most common problems are chain wear and failure of one or more sprockets on the cassette. Wear is also true for a single-speed one, the only difference is that the chain and the star itself are designed for longer operation.

A worn out part of the transmission negatively affects its entire operation, so the used sprocket will need to be replaced. This problem especially pops up on asterisks that are used too often, which, in principle, is logical. Before changing, it is necessary to remove the worn out sprocket from the rear wheel, which we will talk about further.

Dismantling the transmission cassette

The rear of the transmission is not too difficult to disassemble, all that is needed is time and a few tools: a cassette puller, a whip and wrenches (open-end. for removing a wheel and an adjustable. for a cassette).

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The first thing to do is to free the bike from the rear wheel. Using a wrench, the nuts are unscrewed, and the chain is dropped from the rear sprockets. On a mountain bike, it is usually a matter of a second to remove and put on the wheel, thanks to the eccentric mount.

The removable device is installed on the slotted nut of the cassette. A whip. a small flat “knife” with a fragment of a chain. is needed to keep the cassette from turning. With the help of an adjustable wrench, we rotate the puller, we direct the whip in the opposite direction, or, more simply, we hold it with a large star of the system.

To unscrew the nut, you will need to sweat a little, and not only in the first stage. With the same good effort, the stars will need to be returned to their place. Once the nut has folded, the cassette can be safely detached from the wheel. Now it remains to examine it and determine which star needs to be pulled.

Some of the outer small sprockets can be removed immediately when removing the cassette. They should be cleaned and inspected for wear. The same is done with the main sprockets: it is determined how much they are worn out and which ones are the most.

Removing and installing a star on cassettes

Unlike ratchets, in this system the stars can be changed individually. All that is needed is to remove the old part and put a new one in its place. Special rivets and small spacers are located between the stars, which allow them to hold a fixed position and facilitate the installation of the cassette itself. It is very easy to screw the desired star from the device, the main thing is not to get confused in the sequence, especially on large cassettes of high-speed mountain bikes.

Sometimes on cassettes “spiders” can be found. rigidly fixed areas of several stars. Here you will have to replace the entire set, on which one of the stars is badly worn out. True, this only applies to large transmission rear wheel sprockets.

When replacing a single chainring, you may encounter the problem of the difficulty of switching the chain to it. This is due to the fact that the chain already has wear compared to the new sprocket. And if this is not so noticeable with one detail, then several new stars will immediately bring a noticeable dissonance to the operation of the transmission. That is why it is advisable to change the cassette simultaneously with the chain.

A little about singlespeed

To remove the rear transmission sprocket from a single speed bike, you only need to open the retaining ring. Among singspeed lovers, you can hear that the regular ring is useless and can break itself, even if you did not think about changing the star. Perhaps this is so. In any case, if the stopper is damaged, we change it to a new one, otherwise backlash cannot be avoided (the chain simply dangles from side to side).

It is also very simple to assemble such a structure: the ring is literally put on its own, you don’t even need to squeeze it. It’s that simple on single-speed bikes! You shouldn’t just wedge yourself into the transmission of a bicycle with one gear. Common reasons are a badly worn part or the need to install a new sprocket with a larger diameter.

As you know, without serviceable stars and chains, the great will not even be able to get under way. Timely replacement of transmission system components is the most important component of repairing any type of bike. from simple road two-wheeled “bugs” to road and mountain superbikes.

how to replace the rear sprocket on a speed bike

There are not many key parts in a speed bike. The main ones include the stars, which serve to switch speeds with the provision of gear ratios in the transmission. With the constant operation of the bicycle mechanism, worn sprockets are formed. This is facilitated by the usual physical process. friction. What is the threat? The chain starts to jam and simply slips deformed parts.

The problem that has arisen requires an immediate solution. If the question is ignored, then any movement on the road will turn into a solid negative. The model of a modern bike allows you to change a worn out part. Our article will tell you how to replace the rear sprocket on a speed or mountain bike.

Disassembly process of transmission cassette

Some theory beforehand. On the rear wheel there can be two variants of parts associated with gear shifting.

  • Transmission cassette. This product features modernity and innovative spline mountings that attach to the hub axle.
  • Ratchet. A somewhat outdated model typical of inexpensive speed bikes. The set contains no more than seven gears. As for the mount, it has a thread with external installation parameters.
remove, sprocket, rear, wheel

Let’s focus on the ratchet right away. Changing the rear chainring on a ratchet bike is not possible. Only change the entire component completely.

Therefore, the topic of the article will be a problem describing a situation when a bicycle cassette star needs to be replaced. As for the set of stars in the transmission, up to 11 pieces are possible, depending on the bike model.

Ratchet and cassette elements

So how do you change the rear sprocket on a speed bike? Consider the algorithm of actions.

  • Take the bicycle key for the rear wheel and dismantle it. We sequentially unclench the levers and loosen the fixing of the nut.
  • Now it is the turn for the axle nuts. Using another key, turn off the mount.
  • The next step involves unscrewing the bearing cone and pulling it out.
  • We take out the axis with all the elements.

Sleeve recessing process.

  • We take a special tool. a cassette remover. We insert it into the slots.
  • The whip is placed on the largest sprocket. We make rotational movements clockwise.
  • At the same time, using an adjustable wrench, the puller rotates in the opposite direction.

The preliminary stage is over. Such simple actions are possible in ordinary household conditions. We emphasize that if more than one star is worn out, but several, it is better to replace the entire cassette at once. This option is also desirable if the largest star is damaged.

And one more recommendation. We put all small parts, washers and nuts in a certain place, so that later we do not search all over the room

Star stripping process

How to change the rear sprocket on a bike after the first stage has already been passed.

  • Removing the mount.
  • Detach the cassette from the rear wheel.
  • We make a thorough inspection.
  • Determining Wear Sprockets.
  • We remove the worn out product.
  • Pay attention to the arrangement of the stars and the sequence of fasteners and washers between them.

Cassettes, compare favorably with ratchets, in that each worn part can be freely removed separately.

A separate recommendation would be to replace the chain, which is also worn out, along with the sprocket.

Stages of installing new stars

How does assembly work when replacing a bicycle cassette chainring?

Let’s look at the steps.

  • Install a new sprocket and fix it.
  • Assembling the cassette in reverse order.
  • Using a puller, mount the drum on the slotted area.
  • The drum must first be leveled.
  • Next, we carry out the process of assembling the sleeve. All actions described in the first paragraph are carried out in reverse order.
  • Install the rear wheel and fix it securely.
  • Put on the chain.

It is imperative to check the smooth operation of the transmission. This procedure involves adjusting the rear derailleur.

If everything is done according to the proposed instructions, feel free to get on the bike and enjoy the ride.

How to remove a bike cassette

Cyclists often have to service their vehicle on their own. each time it will be quite expensive to contact specialized repair services. Many bicycle elements can be removed and installed quite easily and simply, but there are details that require the use of specific tools and some knowledge. These include the cassette. a part that is attached to the rear hub.

How to remove a bike cassette

First of all, you need to prepare the necessary tool:

  • cassette retaining ring remover;
  • “Whip”. a special key to which a bicycle chain is attached (fragment);
  • adjustable wrench.

You can, of course, do without the specified specific tool. over, there are 2 such methods and both will “work” 100%:

Be sure to prepare an area with a flat surface, which should be within arm’s reach of the bike. this is how you can save and not lose all the parts of the bike cassette.

Step-by-step instructions for removing the cassette:

  • The bicycle wheel is removed, a special puller is installed. You need to pay attention to the correct installation of this tool: its slots must completely enter the grooves of the retaining ring.
  • The “whip” key is taken into your hands and placed on the sprocket so that the fragment of the bicycle chain on the key is on the sprocket teeth. Please note that the handle of the “whip” should be to the right of the cassette, a fragment of the tool chain. at the top.
  • An adjustable wrench is placed on the cassette remover and rotated counterclockwise. Simultaneously with this movement, it is necessary to firmly hold the “whip” key in a fixed position. thus, movements / scrolling of the sprocket are blocked. Note:in some cases, the chain may jump off during this process, which means that the cassette sprockets are very worn out or the key “whip” is broken. Experts recommend throwing a “whip” over a large sprocket. you can get the desired fixation effect.
  • The retaining ring is completely unscrewed, the cassette is removed.

Be sure to make sure that the removed cassette, as well as the sprockets and all fasteners, are in the removable form exactly in the order in which they were in the original version.

After removing the cassette, you can start cleaning and lubricating it. these procedures are among the mandatory for regular maintenance of a two-wheeled vehicle.

How to install a cassette on a bike

First of all, make sure that the cassette assembly matches the unfolded / removed parts. To facilitate this process, the sprockets have grooves of different sizes (for each sprocket. individual), and the bushing has suitable splines. It is the correct alignment of the grooves and splines that all the sprockets will stand in a certain order.

There are some important things to keep in mind when installing the cassette on your bike:

  • Many cyclists lubricate the bushing surface before installing the part in question. However, experts believe this is wrong. after lubrication (until the entire cassette is assembled and installed), both dust and dirt will have time to get onto the applied lubricant, which ultimately leads to the need for maintenance, repair or replacement of elements.
  • Experienced cyclists lubricate the thread of the retaining ring before assembling the cassette. during subsequent disassembly it will be much easier to unscrew.
  • All sprockets must be worn alternately, but do not forget to put spacer rings between them. In some bike models, you can see not separate sprockets, but a single / one-piece assembly.
  • In many bicycles, to securely install the last sprocket, you need to lightly press it and only then you can screw the retaining ring.
  • After the locking ring is screwed in, first you need to check the correct installation of the cassette and only after that you can finally tighten it. Tightens the retaining ring clockwise.
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Removing and installing the cassette is not difficult, because with a minimum set of tools and at least basic knowledge of the technical plan, all the work will take a little time, a maximum of 60 minutes. But even if such a process is to be carried out for the first time, you should not give up. the experience of removing and installing a cassette will certainly come in handy more than once. The fact is that experienced cyclists recommend carrying out such maintenance of the bicycle cassette at least once a year.

Removing the sprocket from the rear wheel of the bicycle. How to remove rear sprockets from a bike

The bike drivetrain requires periodic maintenance. The most common problems are chain wear and failure of one or more sprockets on the cassette. Wear is also true for a single-speed one, the only difference is that the chain and the star itself are designed for longer operation.

A worn out part of the transmission negatively affects its entire operation, so the used sprocket will need to be replaced. This problem especially pops up on asterisks that are used too often, which, in principle, is logical. Before changing, it is necessary to remove the worn out sprocket from the rear wheel, which we will talk about further.

Dismantling the transmission cassette

The rear of the transmission is not too difficult to disassemble, all that is needed is time and a few tools: a cassette puller, a whip and wrenches (open-end. for removing a wheel and an adjustable. for a cassette).

The first thing to do is to free the bike from the rear wheel. Using a wrench, the nuts are unscrewed, and the chain is dropped from the rear sprockets. On a mountain bike, it is usually a matter of a second to remove and put on the wheel, thanks to the eccentric mount.

The removable device is installed on the slotted nut of the cassette. A whip. a small flat “knife” with a fragment of a chain. is needed to keep the cassette from turning. With the help of an adjustable wrench, we rotate the puller, we direct the whip in the opposite direction, or, more simply, we hold it with a large star of the system.

To unscrew the nut, you will need to sweat a little, and not only in the first stage. With the same good effort, the stars will need to be returned to their place. Once the nut has folded, the cassette can be safely detached from the wheel. Now it remains to examine it and determine which star needs to be pulled.

Some of the outer small sprockets can be removed immediately when removing the cassette. They should be cleaned and inspected for wear. The same is done with the main sprockets: it is determined how much they are worn out and which ones are the most.

Removing and installing a star on cassettes

Unlike ratchets, in this system the stars can be changed individually. All that is needed is to remove the old part and put a new one in its place. Special rivets and small spacers are located between the stars, which allow them to hold a fixed position and facilitate the installation of the cassette itself. It is very easy to screw the desired star from the device, the main thing is not to get confused in the sequence, especially on large cassettes of high-speed mountain bikes.

Sometimes on cassettes “spiders” can be found. rigidly fixed areas of several stars. Here you will have to replace the entire set, on which one of the stars is badly worn out. True, this only applies to large transmission rear wheel sprockets.

When replacing a single chainring, you may encounter the problem of the difficulty of switching the chain to it. This is due to the fact that the chain already has wear compared to the new sprocket. And if this is not so noticeable with one detail, then several new stars will immediately bring a noticeable dissonance to the operation of the transmission. That is why it is advisable to change the cassette simultaneously with the chain.

A little about singlespeed

To remove the rear transmission sprocket from a single speed bike, you only need to open the retaining ring. Among singspeed lovers, you can hear that the regular ring is useless and can break itself, even if you did not think about changing the star. Perhaps this is so. In any case, if the stopper is damaged, we change it to a new one, otherwise backlash cannot be avoided (the chain simply dangles from side to side).

It is also very simple to assemble such a structure: the ring is literally put on its own, you don’t even need to squeeze it. It’s that simple on single-speed bikes! You shouldn’t just wedge yourself into the transmission of a bicycle with one gear. Common reasons are a badly worn part or the need to install a new sprocket with a larger diameter.

As you know, without serviceable stars and chains, the great will not even be able to get under way. Timely replacement of transmission system components is the most important component of repairing any type of bike. from simple road two-wheeled “bugs” to road and mountain superbikes.

How to change sprockets on a bike?

The bicycle is becoming more and more popular nowadays. This is due either to paid parking and the high cost of gasoline, or to the currently fashionable healthy lifestyle.

But almost everyone loves to ride a bicycle, but not everyone knows how to properly care for it. Naturally, over time, parts fail and they should be replaced with new ones or serviced.

As part of this article, we will talk about bicycle sprockets and how you can disassemble and care for them.

Why you need to change sprockets on a bike?

The sprocket on a bicycle has one of the main roles that affect ride quality and speed. During the use of a two-wheeled vehicle, a load is exerted on all its component parts.

Replacing the sprockets is essential for proper function and gear shifting. If you do not repair parts immediately after damage, there is such an option that broken parts will accumulate and repair will be quite costly, in some situations it exceeds the cost of the bike itself.

Bicycle sprocket design

The mechanism externally has several stars of different sizes, which are fixed with a bushing. After that, everything is connected with a lock nut.

Asterisk options:

  • The usual version is that the stars are connected to each other by a plastic spacer;
  • Spider cassette. cassettes made in the form of stars, fixed on an aluminum frame;
  • On several spiders. devices that have a high cost and are usually installed on professional and expensive models. The appearance has 2 spiders, which are connected by sets of stars;
  • X-Dome is a monolithic system that connects the drum to the lid on the opposite side;
  • OpenGlide. Most Relevant for Road Bikes.

How to remove sprockets from the rear wheel of a bicycle?

It is absolutely not difficult to disassemble the device for replacement, but you should be careful and have a couple of free hours in stock.

In some situations, the disassembler initially spends 15 minutes, and another person without the necessary skills can handle it in 1-2 hours.

That is why it is difficult to answer the question of how much time can be spent on a laborious process. In most, all stars have the same parsing method, since they have almost the same structure.

Helpful hints for parsing:

  • How the parts are removed, in this order they should be installed. This advice will help from confusion and waste of extra time that can be spent remembering where a certain detail came from;
  • After parsing, every detail needs to be inspected, perhaps it does not require replacement, but a banal cleaning is simply necessary.

Required tools

In order to remove the sprockets from the bike, you must:

  • A puller suitable for the slotted nut and circlip;
  • Whip. a metal key, consisting of 10-20 links;
  • Adjustable wrench.

Procedure

Step-by-step instructions for parsing:

  • The bike is installed with the wheels up and is in a stable position. The bike must stand on a flat surface and not carry out additional movements that can adversely affect the removal of parts;
  • We remove the wheel located at the back, this can be done using a wrench of the appropriate size. The chain for parsing the star is removed in order not to interfere;
  • With a whip we fix the cassette in one place, we untwist the cassette itself using a puller put on the nut;
  • After that, we remove the plastic ring, which serves as a kind of protection and establish a further front of work (directly install a new one or try to clean and lubricate the parts).

How to replace a sprocket on a bike?

Replacing the sprocket should start with removing the old one, respectively, only then start the installation. If an old part is installed, it must be cleaned and lubricated, only then install.

In the case of a new one, you need:

  • We put on a protective plastic ring;
  • If the stars themselves are not fastened to each other, then they should be put on one at a time, starting with a large one and ending with a small one. We install small rubber pads between the stars;
  • We screw it with a nut, this must be done directly with a wrench. Twisting is carried out according to the hour hands;
  • We fix the nut and check the movement of the nut.

Caring for bike sprockets

Needless to say, all mechanisms require maintenance, otherwise they will quickly fail. Cleaning the transmission from dirt as it gets dirty will significantly extend the life of the part.

You can clean the bike structure according to the following principle:

  • Release the brake and remove the rear wheel;
  • Inspect the inner cassette for dirt. If the dirt is strong, then without removal it will not be possible to clean, in the case when the dirt is minimal, then you can clean it directly on the bike;
  • Use coarse-bristled brushes for cleaning, but they should be small enough to get into hard-to-reach areas. An old toothbrush that is not planned to be used for its intended purpose is suitable for such cleaning;
  • Initially, a rag should be dipped in kerosene and only after that start removing dirt from the sprocket;
  • After cleaning, apply grease to the brush and wipe over the teeth. Then install back.

In order not to change the asterisks, you should constantly carry out proper care and diagnostics. Spending a few minutes of your time once a month to lubricate the sprockets, you can protect yourself not only from large costs, but also wasting extra time.

Therefore, it is much easier to take care of in a timely manner than to repair your bike, especially if you use it often enough.

If a breakdown still happened, you should not be upset, but make every effort to fix it yourself.

How to remove the sprocket from the rear wheel of a speed bike

The transmission of a speed bike consists of three main elements: a derailleur on the rear wheel, a derailleur (shifters) on the handlebars, and a set of sprockets. The latter bear a heavy load, so they are subject to rapid wear. Before removing the sprocket from the rear wheel of a speed bike, you need to learn how to do it correctly. Mistakes made during disassembly will lead to damage to the part, or failure of the ratchet bearings (it all depends on the type of construction).

Why might you need

Dismantling of the old cassette is necessary for full maintenance. In this case, almost the entire bike is subject to disassembly. If maintenance was carried out recently, removal will be required for the following reasons:

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Take the survey

There are also other reasons for removing the bike’s transmission cassette. They will be mentioned below. But first you need to figure out the sequence of actions before disassembling.

Depletion of teeth Violation of factory geometry Appearance of a “wave” between the teeth

Step-by-step removal from the rear wheel

The sequence of actions differs depending on the type of construction of the part. Therefore, before removing the old cassette, the bicycle owner should find out which category it belongs to. There are two of them:

  • Standard cassette. Consists of at least six stars, is fixed to the bushing with a special nut, which is screwed to the drum. Budget cassette models consist of a riveted base (from 1st to 3rd or 4th stars) and a set of additional stars screwed to the base with a hex bolt. Everything that is higher in cost can be easily disassembled thanks to two common hexagon bolts that secure all the sprockets at once.
  • Ratchet. Many people confuse it with a regular cassette. Visually, it strongly resembles a standard bicycle cassette, but structurally is very different. First of all, it is not removable like a regular cassette from a drum. This is because the drum, equipped with loose bearings, is one piece with the ratchet. To remove it, you will have to disassemble almost half of the sleeve, leaving only the shaft with the bulk bearings of the sleeve.

Now more about the sequence of actions when removing the bicycle cassette. The procedure will not take much time. The main thing is to follow the instructions:

  • Removing the rear wheel from the bike. To do this, unscrew the two nuts on the shaft, or pull out the eccentric handle (if any) to loosen the fastening. It is important to watch the chain so as not to twist the rear derailleur.
  • Checking the current state. This can be done on the bike without disassembling it. But in this case, it is not always possible to notice that the repair of the cassette of your bike needs to be done as quickly as possible. For example, if the bushing suffers from micro-backlash, while the owner attributes this problem to the cassette.
  • Withdrawal. For dismantling, a chain whip and a special cassette puller are used. First you need to see where the 12-tooth retaining ring is. If the rear hub is heavily contaminated with oil and dirt, making it difficult to quickly locate the retaining ring, it is sufficient to clean the last sprocket of the cassette with the fewest teeth. It is held by a retaining ring having a left (reverse) thread. When unwinding, you can hear a characteristic crunch, sometimes a grinding. No need to worry, extraneous sounds are generated by locking teeth and loosening of the tightening torque. The whip is used to prevent damage to the hub drum.
  • Shifting the cassette. To remove the element, it must be moved relative to the drum in any direction. The part will not fly apart into separate collapsible parts if all of them are fixed with long hex bolts.

That’s all. the procedure is complete, you can carefully examine the technical condition of the part. The inner edges of the star, teeth are subject to verification. Additionally, you need to make sure that the star itself is not curved.

Removing the rear wheel from the bike Checking the current status Removing Shifting the cassette

Features of removal from a high-speed bike

If you need to remove the cassette from a high-speed bike, you need to carefully read a number of features and nuances characteristic of this procedure. So, for example, you can face certain difficulties when disassembling sprockets on a six- and seven-speed bike. There is a solution to the problem for each case.

With 7 stars

To dismantle, you must make sure in advance that there is a retaining ring and become familiar with the technology of clamping all the sprockets to each other. In budget models of transmission, the sprockets are not bolted, but are rigidly connected with rivets. Unmaintained specimens can be thrown away immediately if something happens to their teeth.

With 6 stars

A six-speed set is, in the vast majority of cases, ratchets. To complete this procedure, you must use a 15 mm wrench to get rid of the rear wheel and a 17 mm wrench to loosen the axle nuts. Further, to remove the rear set of sprockets from the bike, follow the instructions:

  • Removing the bearing cone.
  • Removing the bearing from the opposite side of the sleeve.
  • Removing the axle with bearing and cone. If the old hub elements are out of order, the bike owner has an excellent reason to install a new repair kit.
  • Slotted cassette puller.
  • Installing the whip on the lightest (largest) star.
  • Rotating a star in a clockwise direction.

The last step is to rotate the puller counterclockwise using a head or an adjustable wrench.

Removing the cassette without a stripper

If it is necessary to change the cassette, many owners are faced with the problem of the lack of a tool to perform such work. Obviously, it cannot be in every home, since the puller has a specific design. The purchase of a special tool will not force you to say goodbye to a large amount. However, cyclists only in isolated cases decide on additional costs. This is because, as an alternative, you can create a tool for self-removing sprockets.

To make it, you need to get four copies of self-tapping screws, a strong wooden stick (40 x 20 x 300), a screwdriver and an old chain. The latter can always be found in any cyclist who respects his vehicle. It is not recommended to change screws for nails.

An old chain must be attached to the edge of the stick with four self-tapping screws. Further, when removing the rear cassette, the cyclist puts on it a chain from an impromptu whip. Then. unscrews the nut.

It is possible to unscrew the nut in the absence of a whip and a puller, but it will be very difficult. This option is suitable if the nut is not tightened sufficiently.

To unwind, you need to take a flat screwdriver and a hammer. The working edge of the screwdriver is placed on the splines of the nut, and then gently hit on the handle with a hammer. If done correctly, the nut should gradually give way, starting to unwind. It is important not to overdo it with the force of impact, so as not to damage the splines of the nut.

How to make a bicycle puller with your own hands

A lock nut puller cannot be made at home. you definitely need a lathe for this. But to make a whip, it is enough to take four long self-tapping screws, an ordinary thick board and an old bicycle chain. The sequence of actions will be as follows:

  • The master puts the board strictly vertically.
  • To the top of the board you need to attach a chain twisted three times.
  • Two self-tapping screws are screwed on top between the pins of the chain so that they hit the top of the board.
  • On the left and right side of the board, you also need to screw it on a self-tapping screw, not letting the chain “walk”.

With the chain on the cassette stars, you can begin to loosen the lock nut. For easy storage, a small hook is screwed to the bottom of the board, if desired, by which you can hang the structure. Such a homemade tool will save a decent amount and will last a long time.

Video. How to remove sprockets from the rear wheel of a bicycle: step by step instructions

With active riding, the bike gradually wears out. To avoid this, you must constantly look after him. On speed bikes, one of the most vulnerable spots is the rear of the drivetrain. Therefore, sometimes it requires replacement. How to remove sprockets from the rear wheel of a bicycle?

Why is it needed?

The most common problem is chain wear. If not replaced in time, it will begin to bore out stars. Everyone has their own favorite show that they use the most. Over time, the chain on it will begin to spin if a heavy load is applied. Therefore, you need to learn how to remove sprockets from the rear wheel of a bicycle. As soon as such a skill is acquired, you can fix any breakdowns yourself. And this will save you a lot of money on maintenance in the workshop.

Why is this necessary? You can remove the sprockets from the rear wheel of the bike for both regular lubrication and a complete replacement. They will also interfere if you need to replace the spokes on the right side or get to the hub itself.

The difference between a ratchet and a cassette

Before removing the sprockets from the rear wheel of a bicycle, you need to decide on their design. It is important to distinguish between ratchet and cassette. Although they are similar in appearance, they are very different inside.

In the ratchet, the freewheel is installed together with the sprockets. This is such a monolithic system that is simply screwed onto the bushing. The cassette can be disassembled, so you can replace one worn sprocket. Unlike a ratchet, it is not a monolith with a freewheel mechanism, but is put on it.

To remove them, you need different pullers. It is important not to confuse them with each other, because they are not interchangeable. They have different splines. If you are still afraid not to distinguish a ratchet from a cassette, a photo will be an excellent tip in this matter.

How to remove sprockets from the rear wheel of a bicycle?

If it’s a ratchet, then things will be a little easier. If there is special equipment, then even a person who has nothing to do with bicycles can cope with this.

This requires only 2 tools:

  • special puller;
  • adjustable wrench.

First, of course, you need to remove the wheel. Then the stars are removed in two steps. It is necessary to insert the puller into the ratchet, and then try to turn it counterclockwise with a key.

If the mechanism has never been removed, then it can twist strongly (such is its property) and not give in even under great efforts. Then you need to spray the miraculous WD-40 spray there from the thread side. If you leave it like this for a few hours, then the ratchet can be easily removed. It should also be remembered that the larger the lever, the greater the effort. Therefore, you need to take the largest adjustable wrench. Do a couple of jerks and the ratchet will unscrew easily.

You will need another tool to remove the cassette. It’s called a whip. It’s a handle with a piece of bike chain attached to it. If the cassette is turned counterclockwise, it will start to rotate. This is where this whip comes in handy to hold her. Some craftsmen simply use a piece of an old chain instead of this tool. Then everything is the same as when removing the ratchet.

How to remove sprockets from the rear wheel of a bicycle without a puller?

For such an operation, you do not need to purchase a special tool. True, it is much easier to deal with him. In order to remove the ratchet without a puller, you will need:

The ratchet has 2 slots. You need to insert a center punch there and hit it with a hammer. You need to direct it clockwise. You can use a large nail instead. You have to be careful, as there are bearings under this place. With a little effort, you can screw the sprockets.

There is still the inside of the ratchet. It is removed with a gas wrench, which is turned counterclockwise.