How To Remove The Rear Sprocket From A Speed Bike

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. A 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. Consider how to remove a sprocket from a wheel for later replacement.

First, why is it necessary and can you do without it? No comments. A partially worn drivetrain will impair the performance of the entire bike. Therefore, the star must be replaced in case of breakdowns. This is especially true for asterisks, which are used especially often. Naturally, before doing repairs, the worn part must first be removed.

Disassembly procedure for transmission cassettes

Removing the large rear end of the transmission is not difficult. Sprocket Removal Tool Kit Next.

How To Remove The Rear Sprocket From A Speed Bike
  • Open-end wrench for wheel removal;
  • Adjustable cassette wrench;
  • Whip;
  • Cassette remover.

The first step is dismantling 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 minutes, since it is fixed to the eccentric.

Install the puller onto the spline nut. The “whip” is used to keep the cassette from scrolling. Turning the puller with an adjustable wrench. The direction of rotation of the whip is in the opposite direction.

Removing the nut is not easy. We’ll also have to work hard to install it in place. After the nut was unscrewed, the cassette is detached from the wheel, a large one 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.

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 is 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.

Bicycle sprocket care

The rubbing mechanisms of the bicycle should be periodically lubricated and cleaned of dirt. This extends the transmission life and makes driving safer. After several trips on bad roads, forest or, moreover, off-road, the bike turns out to be literally overgrown with mud. If the frame and wheels can be washed white, then the contamination of the bike mechanism is simply not visible. Therefore, after such trips, it is useful 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 disc brake caliper;
  • 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, and not remove it from the wheel;
  • Use special narrow brushes for cleaning, which make it possible to penetrate between the gears and clean out what is not required 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 stars;
  • Wipe the surfaces with a napkin 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. Only in this way can you achieve the desired result.

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 a sprocket from a bike

The sprockets of a high-speed bike are the main parts of the gear shifting system, which provide the gear ratio of the transmission. According to the degree of impact, they are divided into leading and slave. The first are located in 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 their full or partial replacement is required. The second option is more common in practice, since wear is uneven. The most frequently used programs are subject to it. The problem, of course, requires a timely solution, otherwise driving will turn into torment. The chain will jam or skip over 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 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, so the used sprocket will need to be replaced. Especially this problem pops up on the asterisk, used too often, which, in principle, is logical. Before changing, it is necessary to remove the worn sprocket from the rear wheel, in which we will talk further.

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 their order.

Outcome

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 big one, it will really show itself to be high-speed, and will not be sadly dragged along in a single gear.

A little about singlespeed

To remove the rear transmission sprocket from a single speed bike, you only need to release the circlip. Among the fans of singspeeds, you can hear that the regular ring is useless and can break, 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 placed, it is not even necessary to compress 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 chainring with a larger diameter.

As you know, without serviceable stars and a chain, the Great One will not even be able to move. Timely replacement of components of the transmission system is the most important component of repairing any type of bicycle. from simple road two-wheeled “bugs” to road and mountain superbikes.

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Removing the cassette

To remove the sprocket cassette from the rear axle of the bike, you must:

  • Turn the bike upside down and place it on a flat, solid surface resting on the handlebar and saddle;
  • Unscrew the axle fastening nuts and remove the rear wheel and chain;
  • Install the puller on the slotted nut and put on it an adjustable wrench (or a suitable socket wrench) with an extension;
  • Put a whip on the largest star;
  • Holding the whip with one hand, the other Unscrew the spline nut counterclockwise;
  • Remove the cassette and disassemble it, carefully placing all the stars and spacers in order.

If, during the subsequent assembly of the cassette, the correct sequence of installation of the intermediate washers is not observed, this can lead to problems when switching speeds while the bike is moving.

Bicycle sprocket care

The rubbing mechanisms of the bicycle should be periodically lubricated and cleaned of dirt. This extends the transmission life and makes driving safer. After several trips on bad roads, forest or, moreover, off-road, the bike turns out to be literally overgrown with mud. If the frame and wheels can be washed white, then the contamination of the bike mechanism is simply not visible. Therefore, after such trips, it is useful 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 disc brake caliper;
  • 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, and not remove it from the wheel;
  • Use special narrow brushes for cleaning, which make it possible to penetrate between the gears and clean out what is not required 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 stars;
  • Wipe the surfaces with a napkin 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. Only in this way can you achieve the desired result.

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.

Tools

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

How to remove a rear sprocket on a speed bike

The drivetrain plays a very important role in the operation of the entire bike, so you must carefully monitor the wear of its SEPARATE parts. This is especially true of 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.

Required set of tools

Before starting the replacement process, acquire the necessary tools that may be useful to you. It:

  • Whip
  • Cassette removers
  • Rozhkova and adjustable wrenches

How to properly disassemble a cassette?

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

The process of dismantling and replacing the sprocket

Using the nut, unscrew the cassette and remove it from the wheel. We carefully examine the stars and determine which of them 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 examined the cassette, you are removing the used parts from it and replacing 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.
On some bikes, you may find so-called “spiders” in the configuration. This is a group of several stars, which 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.

What You Should Know in Singlespeed?

If you own a single speed bike, the process of replacing the rear chainring will be simplified to a minimum. You just need to unclamp the circlip. If the original 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 force manipulations. Therefore, if you are talking about a single-speed bike, everything is very easy and understandable here. However, Owners of such models should carry out the process of dismantling the cassette only if one or more of the Largest sprockets 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 promptly replace worn-out parts. A working bike is the main guarantee of your safety and a cool, trouble-free ride!

Bicycle sprocket options

Cassettes are consumable items and must be replaced periodically. On average, from 5 to 15 thousand km of driving.

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 the biggest sprocket is likely to 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 on 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:

  • Connecting rod puller;
  • Spanner key;
  • Hexagons;
  • New detail;
  • Clean cloth and grease.

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

2.Remove the right connecting rod fixing axle bolt with a hexagon.

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

4. Insert the puller into the connecting rod to remove it from the carriage. First, we screw the tool all the way into the thread. It is important that it sit evenly on the shaft, otherwise it can be damaged when unscrewing the connecting rod. Install the spanner wrench on the puller and screw it in until it stops until the connecting rod is not pushed out of the carriage shaft.

5. Carefully remove the system from the chain.

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

This is how the system understands.
Replacement and installation 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 middle and small stars 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.
  • Gently put the chain on the system and screw the connecting rod by rotating the puller in the opposite direction.
  • Tighten the fixing nuts and put the plugs.
  • Probably the pedal on the connecting rod.

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

At the end, check the operation of the transmission. everything is in order and does NOT require adjustment of the speed switch.

Change the sprocket on the rear cassette

The set of transmission stars of the rear wheel is many times superior to the front one. The standard kit includes eight components, and in high-speed models (or for a large sports area) there are 9 or 11.

It is worth mentioning right away that a cassette or ratchet may belong to the back. The cassette is a modern version with an internal slotted mount on the bushings. 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 different from Cassette.

The fundamental difference from the cassette is its integrity. it is impossible to change the star separately for 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.
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Sequence of work:
1. Remove the rear wheel with a 15 wrench, with an eccentric mount everything is simple. we open the lever and loosen the fixing nut.

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

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

4. Remove here with a cone and bearing. In bushing components: if necessary, they can be immediately replaced with new ones.

5. Insert the cassette remover into the slots.

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

7. 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, with heavy wear, when half of the cassette is worn off, it makes no sense to change them individually. Difficulties can also arise if the largest sprocket has been erased, on which all the others are usually attached.

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

When replacing SEPARATE stars, especially the middle ones, disassemble the cassette carefully so as not to lose all spacer and fixing washers. Everything is easier with a spider cassette. you don’t need to disassemble it, 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, it is necessary to align the drum 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 it from the side of the cassette, then the bearing and the cone on the left side, fix it with nuts.
  • Put on the chain and put the rear wheel.

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

Downhill transmission

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

To remove the transmission sprocket on a single-speed VELOBIKE, it is enough to simply open the circlip. Many singlespeed fans argue that the “native” retaining ring is NOT good for anything and sometimes breaks, even if it 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, the faulty 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.

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 the biggest sprocket is likely to 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 on 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:

  • Connecting rod puller;
  • Spanner key;
  • Hexagons;
  • New detail;
  • Clean cloth and grease.

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

2.Remove the right connecting rod fixing axle bolt with a hexagon.

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

4. Insert the puller into the connecting rod to remove it from the carriage. First, we screw the tool all the way into the thread. It is important that it sit evenly on the shaft, otherwise it can be damaged when unscrewing the connecting rod. Install the spanner wrench on the puller and screw it in until it stops until the connecting rod is not pushed out of the carriage shaft.

5. Carefully remove the system from the chain.

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

This is how the system understands.
Replacement and installation 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 middle and small stars 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.
  • Gently put the chain on the system and screw the connecting rod by rotating the puller in the opposite direction.
  • Tighten the fixing nuts and put the plugs.
  • Probably the pedal on the connecting rod.

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

At the end, check the operation of the transmission. everything is in order and does NOT require adjustment of the speed switch.

How to remove a sprocket from a bike

The sprockets of a high-speed bike are the main parts of the gear shifting system, which provide the gear ratio of the transmission. According to the degree of impact, they are divided into leading and slave. The first are located in 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 their full or partial replacement is required. The second option is more common in practice, since wear is uneven. The most frequently used programs are subject to it. The problem, of course, requires a timely solution, otherwise driving will turn into torment. The chain will jam or skip over 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.

Change the sprocket on the rear cassette

The set of transmission stars of the rear wheel is many times superior to the front one. The standard kit includes eight components, and in high-speed models (or for a large sports area) there are 9 or 11.

It is worth mentioning right away that a cassette or ratchet may belong to the back. The cassette is a modern version with an internal slotted mount on the bushings. 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 different from Cassette.

The fundamental difference from the cassette is its integrity. it is impossible to change the star separately for 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.

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

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

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

4. Remove here with a cone and bearing. In bushing components: if necessary, they can be immediately replaced with new ones.

5. Insert the cassette remover into the slots.

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

7. 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, with heavy wear, when half of the cassette is worn off, it makes no sense to change them individually. Difficulties can also arise if the largest sprocket has been erased, on which all the others are usually attached.

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

When replacing SEPARATE stars, especially the middle ones, disassemble the cassette carefully so as not to lose all spacer and fixing washers. Everything is easier with a spider cassette. you don’t need to disassemble it, 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, it is necessary to align the drum 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 it from the side of the cassette, then the bearing and the cone on the left side, fix it with nuts.
  • Put on the chain and put the rear wheel.
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Check the transmission and adjust the rear derailleur. Timely replacement of sprockets will save you from unpleasant surprises on trips and will generally increase the resource of the bicycle transmission.

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 its SEPARATE parts. This is especially true of 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.

Required set of tools

Before starting the replacement process, acquire the necessary tools that may be useful to you. It:

  • Whip
  • Cassette removers
  • Rozhkova and adjustable wrenches

How to properly disassemble a cassette?

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

The process of dismantling and replacing the sprocket

Using the nut, unscrew the cassette and remove it from the wheel. We carefully examine the stars and determine which of them 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 examined the cassette, you are removing the used parts from it and replacing 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.
On some bikes, you may find so-called “spiders” in the configuration. This is a group of several stars, which 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.

What You Should Know in Singlespeed?

If you own a single speed bike, the process of replacing the rear chainring will be simplified to a minimum. You just need to unclamp the circlip. If the original 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 force manipulations. Therefore, if you are talking about a single-speed bike, everything is very easy and understandable here. However, Owners of such models should carry out the process of dismantling the cassette only if one or more of the Largest sprockets 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 promptly replace worn-out parts. A working bike is the main guarantee of your safety and a cool, trouble-free ride!

Removing the sprocket from the rear wheel of the bicycle

Remove the sprocket from the rear wheel of the bike. With and without a puller. Technical questions and answers, Potential problems and nuances.

In most cases, cyclists prefer high-speed bikes. This is due to the fact that it is more comfortable to ride on such bicycles. the gears are adjusted to the terrain of the road and slopes and ascents, the cyclist’s strength is saved. In addition, such a bike can reach a higher speed than a single-speed one. Another advantage is that you can maintain a high cadence (pedaling speed) on a speed bike at all times. High cadence is a guarantee of safety for the rider’s knees.

The multi-speed bike also has one drawback in the form of a complicated design. Unlike single speed bicycles, rear hub and sprocket repairs involve more steps. In addition, more tools are needed for disassembly. Because of this, not every cyclist can figure out what to do without help and instructions.

Technical highlights

When replacing old sprockets with new ones, be sure to buy a new chain. The fact is that as the chain and sprockets wear out, they adjust to each other and work well, but if you put the old chain on a new sprocket, the gear shift will be inaccurate.

The cassette tape needs regular maintenance, at least once a season. This way you can get the most out of the resource of the mechanism. In case of wear, you can only replace the stars that are used most often. That is, this way you can save money, because too high and too low gears are used rarely, which means that these stars may still have a resource.

Ratchets are quite cheap, so it makes a lot of sense to completely disassemble them or replace the chain. Most often, a new ratchet is bought along with a new chain.

Cassette

Cassettes are a more advanced mechanism. Cassettes are put on the wheel hub not by the thread, but using a special drum on the rear hub. Cassettes have a large number of stars. here are 8 to 11. They are more reliable than ratchets and break less when the bike falls or hits it. The resource in stars is greater than in those that stand on the ratchet.

Required tools

To remove the ratchet or cassette, you will need a wrench to remove the wheel from the bike. In addition, we need a special tool. a puller. The ratchet puller is different from the cassette puller and it is not interchangeable, so find out what type of mechanism is used on your bike and buy the corresponding puller. Also, for disassembly, you will need a small hammer and a thin but durable nail or its equivalent.

Step-by-step instruction

Remove the wheel from the bike. We insert a puller into the cassette or ratchet (for each type of stars. its own puller!). Next, we begin to unscrew the ratchet with a key, which is put on the puller. We do it counterclockwise. If the mechanism is working properly, the threads are NOT stuck to each other, then the ratchet will be removed. To disassemble the internal ratchet mechanism with bearing, you need to insert a small nail into one of the grooves in the center of the ratchet. Next, you need to gently hit the Nail with a hammer at an angle of clockwise rotation. The boot will scroll and you will be able to access the internal mechanism.

To disassemble the cassette, remove the wheel from the frame. Next, insert the puller into the cassette. If you have a cassette, you will need a whip. We throw it over the stars and wrap it around the ratchet. Unscrew the cassette counterclockwise. To disassemble a cassette by stars, you need to throw a whip on the stars and twist them counterclockwise. The stars are threaded onto the cassette, so there are no problems with disassembly.

Ratchets

Initially, ratchets were used on multi-speed bicycles. structures of several stars that could not be disassembled. The ratchet was screwed directly onto the wheel hub. For this, there was a thread on the hub and on the wheel. Nowadays, ratchets are used on old or cheap bicycles due to the fact that ratchets wear out quickly and break easily. Ratchets have a small number of gears. modern five or six, sometimes seven.

For this feature, they are called five, six or Semerikov (by the number of gears).

Possible problems

If the ratchet does NOT loosen, the thread may have stuck. Try to spray the threads with brake fluid or anti-silicone. Sometimes you need to use a large lever. take a longer key, for example. a gas.

If the whip does NOT hold onto the cassette, then there is either a problem with the chain on the whip and it is worn out (then buy a new tool) or a problem with the cassette itself (the stars are worn out). In the second case, try to throw a whip on the Least used stars when driving, as they are the least worn out.

How to replace a star or put it back

To put the ratchet back, you need to assemble it. We twist back the boot, pre-cleaned and lubricated all the balls in the bearing. Next, we take the ratchet and twist it clockwise onto the bushing. You can do this with your hands. The ratchet will lock onto the hub during riding, as it twists more with each rotation of the connecting rods.

To assemble the cassette, we wind each star back onto the cassette. Do not forget that there are rubber seals between some of the stars. Next, we take the cassette and put it on the drum of the rear bicycle hub. Tighten the cassette with a puller, steep clockwise.

Cassette or ratchet

It’s worth noting that sprockets are not quite the correct name for a speed bike mechanism. Since you need to specifically indicate what it is about. There are two types of bike stars. ratchets and cassettes. You need to know the difference between their designs, because the way they are disassembled and the features of their operation depend on this.