How to remove a rear sprocket from a speed bike

Sprockets are important transmission parts. For the bike to function normally, you need: the correct choice of gears, careful and timely maintenance, replacement of worn parts. All this allows us to make trips safer, to avoid unpleasant surprises on the road. As for the high-speed bike, it will really show itself to be high-speed, and will not sadly drag on a single gear.

remove, rear, sprocket, speed

How to remove a sprocket from a bicycle wheel with your own hands

The bike drivetrain needs constant maintenance. The chain and sprockets on the wheel are most susceptible to wear. The single-speed bike is not insured against such breakdowns. The only difference from multi-speed models is that the chain and stars are designed for a longer service life. Let’s consider how to remove a sprocket from a wheel for subsequent replacement.

First, why is it necessary and can you do without it? No you can not. A partially worn drivetrain will impair the performance of the entire bike. Therefore, the star must be replaced in the event of a breakdown. This is especially true for asterisks, which are used especially often. Naturally, before doing repairs, the worn part must first be removed.

Cross-country drivetrain

This driving style involves driving long enough distances, and the condition of the road, to put it mildly, is different. The number of front sprockets is 2-3. The number of reverse gears ranges from 8 to 9. This allows you to maintain strength when overcoming hills and carry out a quick descent.

Mountain Bike Drivetrain (All Mountain)

The All Mountain drivetrain features a single chainring sprocket, combined with an 11 chainring at the rear. This makes the bike easy to operate, fast and functional at the same time.

It is possible to determine the optimal settings by trial and error, taking into account your own riding style, the size of the bike’s wheels and a number of other factors.

Disassembly procedure for transmission cassette

Removing the rear of the transmission is easy. Sprocket Removal Tool Kit Next.

  • Open-end wrench for wheel dismantling;
  • Adjustable cassette wrench;
  • Whip;
  • Cassette remover.

The first step is to dismantle the rear wheel of the bike. Using a wrench, unscrew the nuts, then remove the chain from the rear sprockets. For some modifications (for example, for MTB), removing the wheel is literally a matter of a minute, since it is attached to the eccentric.

remove, rear, sprocket, speed

Install the puller onto the spline nut. The whip is used to keep the cassette from spinning. Use an adjustable wrench to rotate the puller. The direction of rotation of the whip is in the opposite direction.

Removing the nut is not easy. You will also have to work hard to install it in place. After the nut has been unscrewed, the cassette is detached from the wheel without effort. It remains only to assess the condition of the cassette and determine which sprocket is out of order.

The outer sprockets can be removed immediately after the bicycle cassette has been removed. They are cleaned and carefully examined to assess the degree of wear. Worn out. replace.

How to remove and put a system star

The system is a set of three chainrings. If you often have to ride at speed, then most likely the largest sprocket will wear out. Conversely, with frequent off-road trips, wear will affect the first (smallest) sprocket. By analogy with the second, middle sprocket, when the bike is used at medium speeds in conditions of a dirt road or bad asphalt.

On a modern mountain or road bike, the system is collapsible, so it will not be difficult to dismantle all the stars. Before work, you need to carefully prepare, namely, collect all the necessary tools:

Removing the system from the bike: 1. Place the frame in an upright position. If you have a stand, you should definitely use it.

Remove the right crankshaft axle fixing bolt with a hexagon.

Unscrew the pedal from the right crank arm. A standard open-end wrench is suitable for this.

Insert the puller into the connecting rod to remove it from the carriage. To begin with, we screw the tool all the way into the thread. It is important that it sits flat on the shaft, otherwise the axle can be damaged when unscrewing the connecting rod. Place the spanner wrench on the puller and screw it in until it stops until the connecting rod is pushed out of the carriage shaft.

The two stars are usually attached to each other on a so-called spider. The big one remains on the connecting rod itself. Unscrew them with the hex bolts.

This is how the system understands. Replacing and installing looks like the reverse process:

  • Place the desired sprocket on the spider and tighten the fasteners. Change the large part together with the right connecting rod and screw the medium and small sprockets onto it.
  • Next is the installation of the connecting rod on the carriage. Before this, it is advisable to clean and lubricate the carriage shaft.
  • Carefully place the chain on the system and screw in the connecting rod by rotating the puller in the opposite direction.
  • Tighten the fixing nuts and fit the plugs.
  • Screw the pedal onto the connecting rod.

When replacing one star, it is advisable to clean the old ones. Lightly grease the system components before installing on the carriage.

So just replace the chainring. All of the listed tools are required. The connecting rod is a delicate thing, and a hammer and chisel is not the best option for removing it. The same goes for keys. It is difficult to replace them with pliers, besides, it can easily eat nuts. Well, without hexagons, it is impossible to disassemble the system into parts.

At the end, check the operation of the transmission. whether everything is in order and whether it is necessary to adjust the speed switch.

Bicycle sprocket care

The rubbing mechanisms of the bicycle must be periodically lubricated and cleaned of dirt. This extends the transmission life and makes driving safer. After several trips on bad roads, forests or, moreover, off-road, the bike is literally overgrown with mud. If the frame and wheels can be washed clean, then the contamination of the bike mechanism is simply not visible. Therefore, after such trips, it is not superfluous to inspect the large and take measures to clean the parts, and, if necessary, replace the worn out components.

You can clean the bike cassette according to this algorithm.

  • Release the rim brake. Alternatively, remove the caliper on the disc brake;
  • Remove the rear wheel;
  • Examine the cassette carefully. If it is heavily soiled, you will have to remove it from the wheel and clean it. With a little dirt, you can clean the bicycle cassette from dirt without removing it from the wheel;
  • Use special narrow brushes for cleaning, which make it possible to penetrate between the gears and clean out what should not be there. In addition, it is much more convenient than penetrating the gaps with a rag;
  • An old toothbrush is great for cleaning the teeth of the sprockets;
  • Wipe the surfaces with a cloth soaked in kerosene. Then apply lubricant to the teeth and pits;
  • It is advisable to clean the sprocket cassette and chain at the same time. This is the only way to achieve the desired result.
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The system is cleaned in the same way. You don’t need to remove the bicycle wheel, but you need to work with the utmost accuracy so as not to accidentally knock off the switch setting.

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.

The worn out part of the transmission negatively affects its entire operation, therefore the used sprocket will need to be replaced. Especially this problem pops up on asterisks, which 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.

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?

  • Install a new sprocket and fix it.
  • We assemble the cassette completely in the reverse order.
  • Using a puller, mount the drum to the slotted area.
  • The drum must first be leveled.
  • Next, we carry out the process of assembling the bushing. 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 carried out according to the proposed instructions, feel free to get on the bike and enjoy the ride.

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 spiders can be found on cassettes. 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 tangible dissonance to the operation of the transmission. That is why it is advisable to change the cassette at the same time as the chain.

Change the sprockets on the rear wheel of the bike

The drivetrain plays a very important role in the operation of the entire bike, so you must carefully monitor the wear of individual parts of it. This is especially true for the rear wheel sprockets, which fail over time. A worn out sprocket must be replaced as soon as possible, and it will not be difficult to do this.

Before starting the replacement process, get yourself the tools you need to help you. It:

  • Whip
  • Cassette remover
  • Rozhkova and adjustable wrenches

First, remove the rear wheel from the bike. This is very easy to do. Unscrew the nut with a wrench and release the chain. Owners of mountain models just need to press on the special mount and the wheel will be dismantled. Next, we install a removable device on the slotted nut of the cassette. Here we need a whip to prevent the cassette from turning. While we rotate the puller with an adjustable wrench, hold the largest star with a whip.

Using a nut, unscrew the cassette and remove it from the wheel. We carefully examine the stars and determine which one has become unusable. Start with the smallest and end with the largest. The bike drivetrain is designed in such a way that you can only replace the worn out sprockets and not the entire cassette. Therefore, having inspected the cassette, you remove the used parts from it and replace them with new ones. It is very easy to pull the star out of the cassette, this is facilitated by special rivets. The main thing is to carefully remember the order of the stars, so as not to get confused with their installation back. In the configuration of some bikes, you may find so-called spiders. It is a group of several stars that are inextricably linked. In this case, you will have to replace the entire spider. Many cyclists are faced with the following problem. After replacing several stars, there is great discomfort in the operation of the chain. This is due to the fact that the chain has already passed a certain mileage, has worn out and now it is difficult for it to interact with new parts. Therefore, experts recommend the simultaneous replacement of the chain and worn sprockets. This greatly minimizes the complexity of your bike’s drivetrain.

If you own a single speed bike, the process of replacing the chainring will be simplified to a minimum. You just need to open the retaining ring. If your own ring has become unusable, it must be replaced immediately, even if you are not going to replace the stars in the near future. Otherwise, the chain will lose its fixation, and this threatens with backlash. The process of replacing the ring is very simple, you do not need to perform the slightest forceful manipulations. Therefore, if you are talking about a single-speed bike, everything is very easy and understandable here. However, the owners of such models should carry out the process of dismantling the cassette only if one or more of the largest stars have worn out. If a small asterisk starts to fail, this is not a cause for concern. Whatever you ride, remember that both the simplest road bike and the super-fast bike need a proper transmission. A badly worn chain and stars will not allow you to drive even a couple of meters. Pay close attention to the mechanics and replace worn-out parts in a timely manner. A working bike is the main guarantee of your safety and a cool, trouble-free ride!

how to replace the rear sprocket on a speed bike

There are not many key parts to 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.

How to remove the 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.

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How to remove a sprocket from a bike

The sprockets of a speed bike are the main parts of the gearshift system that provide the gear ratio of the drivetrain. According to the degree of influence, they are divided into leaders and followers. The first ones are located at the connecting rod pair and are called the system. The driven ones are located on the rear wheel hub and are divided into cassettes and ratchets by design.

Over time, the stars wear out, as a result of which they need to be completely or partially replaced. The second option is more common in practice, since the wear is uneven. The most frequently used transmissions are subject to it. The problem, of course, requires a timely solution, otherwise driving will turn into torment. The chain will seize or skip worn stars. Many modern models allow you to remove the sprocket and put it separately on the system or cassette without replacing the entire assembly. Read on how to do this.

How to remove the 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.
  • A whip is taken in your hands, put on the sprocket in such a way that the fragment of the bicycle chain on the key is on the teeth of the sprocket. Please note that the whip handle 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 the fixed position. thus, the movement / scrolling of the sprocket is blocked. Note:in some cases, the chain may jump off during this process, which means a strong wear of the cassette sprockets or a broken key whip. Experts recommend putting a whip on 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.


Step-by-step instructions for parsing:

  • The bike is installed with the wheels upwards 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 remove the 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.

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.

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 press it slightly 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 then can it be finally tightened. Tightens the retaining ring clockwise.

Removing and installing the cassette is not difficult, because if you have 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.

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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 bike, 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.

Within the framework of this article, we will talk about bicycle sprockets and how you can disassemble and care for them.

Change the sprocket on the rear cassette

The set of transmission stars of the rear wheel is several times larger than the front one. The standard kit includes eight components, and in high-speed models (or on a sports bike) there are 9 or 11.

It is worth mentioning right away that a cassette or ratchet can be placed behind. The cassette is a modern version with an internal splined mounting on the hub axle. Ratchets, as an outdated option, can only be found on a budget high-speed bike. The set usually includes 5-7 gears. External mount, threaded, removable tool differs from cassette.

The fundamental difference from the cassette is its integrity. it is impossible to change the star separately on the ratchet. Here, either all at once, or nothing at all. Therefore, we will consider how to install a new sprocket on the cassette.

As with replacing the leading stars, special tools are required here:

  • cassette remover;
  • chain whip-retainer;
  • adjustable wrench or head;
  • optional: wrenches, chain release.

How To Replace a Single Speed Freewheel

When removing the cassette, you will need to first remove the rear wheel from the bike and then the axle nuts. At the same time, when replacing the sprockets, you can also clean the chain. to remove it, you need a squeeze.

Sequence of work: 1. Remove the rear wheel with a 15 wrench, with eccentric fastening everything is simple. unclench the lever and loosen the fixing nut.

The next step is to unscrew the axle nuts. You will need a 17 key for it. To roll the mount off the rotating axle, we put on an additional nut to fix the axle.

Unscrew the bearing cone and pull out the bearing from the opposite side.

Remove axle with taper and bearing. About the bushing components: if necessary, you can immediately replace them with new ones.

Place the whip on the largest (lowest) star. We will rotate it clockwise.

Use an adjustable wrench or a head to turn the puller counterclockwise.

It is so easy to shoot a cassette at home. Most modern star sets are collapsible, you can install one or two new stars. However, in case of severe wear, when half of the cassette is worn off, it makes no sense to change them separately. Difficulties can also arise if the largest sprocket has been erased, on which all the others are usually attached.

Is it possible to dismantle a cassette without a puller and a whip? In principle, this can be done with a slotted tube and a spanner. The whip can be made by yourself by welding a piece of an old chain to the metal handle of the knife.

When replacing individual stars, especially the middle ones, we disassemble the cassette carefully so as not to lose all the spacer and fixing washers. Everything is easier with a cassette on a spider. it does not need to be disassembled, the star is removed separately from its mount.

Rear transmission assembly:

  • Put and fix a new star, assemble a cassette.
  • Using a puller, install the drum on the spline mount of the sleeve. Before tightening, the drum must be leveled so that the connection does not wear off under load. The whip is not needed here. just rotate the puller clockwise with effort.
  • Assemble the bushing: insert the axle from the side of the cassette, then the bearing and the cone on the left side, fix the axle with nuts.
  • Put on the chain and put on the rear wheel.

Check transmission operation and adjust rear derailleur. Timely replacement of sprockets will save you from unpleasant surprises on trips and will, in general, increase the resource of the bicycle transmission.

How to remove a sprocket from a single speed bike (singlespeed)

To remove the transmission sprocket on a single speed bike, simply open the circlip. Many singlespeed fans argue that the native retaining ring is worthless and sometimes breaks, even if the question is not about replacing the star. In any situation, if the stopper is out of order, you need to replace it. Otherwise, backlash is inevitable. The chain will simply dangle in different directions.

If the sprockets are defective, the bike will not ride. Timely replacement of transmission parts is important for all models of bikes: from the simplest hard workers to the most sophisticated high-speed highways and mountain bikes.

Removing and Installing a Freewheel

Removing the bicycle rear wheel cassette

When the rear sprockets are worn on the bike, as well as when replacing the spokes on the right side or adjusting the cone and lubricating the insides of the hub. you must remove the cassette.

To remove the cassette, we need several tools. a puller, a key for it and a whip (you can use an old piece of chain).

  • The first step is to remove the rear wheel.
  • The stars are pulled to the ratchet (ratchet) by a special nut. In order to unscrew such a nut, we take a cassette remover and a wrench corresponding to the size (usually 17-21)

Since the nut has to be unscrewed counterclockwise (in the direction of the free wheeling of the sprockets), then we will need to use a special tool. a whip.

We throw the whip on the largest star, keeping the cassette from rotating with it, unscrew the slotted nut with a puller wrench. In some cases, in order to unscrew the nut, you will need to make a lot of effort, since it can be strongly pulled.

When the nut has given way, a crackling sound will usually be heard, this is normal, since the smallest sprocket and spline nut have a grooved surface so that they will not unwind randomly.

We remove the asterisk ourselves

Turn the bike over and place it on the handlebar and saddle.

By unscrewing the nut, remove the cassette, taking into account that there may be intermediate washers between the small sprockets, instead of gaskets. 5. When disassembling this entire structure, carefully fold all the parts so that they lie in the sequence in which you removed them, otherwise difficulties will arise during assembly. 6. Having removed all the sprockets and the cassette, the protective plastic ring is removed last. Inspect all removed parts carefully, replace worn ones, clean and lubricate so that after assembly the assembly runs for a long time.

The assembly of the sprocket cassette is carried out in the reverse order. The chain is put on, the rear wheel is twisted, the device turns over and it is again ready to surf the roads bringing joy and pleasure from the movement. The editorial staff of invites you to get acquainted with the most beautiful places in Russia, where you can go, taking your bike with you. Subscribe to our channel in Yandex.Zen


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

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