How to remove a sprocket from a sports bike

Bicycle sprocket options

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

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.

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 sprockets from the rear wheel of a bicycle?

If this is a ratchet, then everything 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. This is a handle to which a piece of a bicycle chain is attached. If you turn the cassette counterclockwise, it will start to rotate. This is where this whip will come in handy, which will 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.

Downhill transmission

The likelihood that the downhiller will have to overcome a steep climb is small. Because of this, many DH bikes only have one forward gear. The number of gears in the rear cassette is limited.

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.

remove, sprocket, sports, bike

How to remove sprockets from a bicycle wheel. sequence of actions

A bicycle cassette with sprockets differs from a ratchet in that individual sprockets can be replaced individually. All that needs to be done is to remove the worn part and replace it with a new one. The space between the individual sprockets on the wheel is filled with spacers and rivets that make dismantling and mounting easier. It is only important not to confuse the sequence. This is especially true for multi-speed mountain models.

It happens that cassettes are equipped with spiders. This is a design where several sprockets are rigidly fixed. In this case, if any of the parts is badly worn out, you will have to replace the entire spider.

Replacing single sprockets can cause chain switching difficulties is great. This is because the chain is sufficiently worn out in relation to the new sprockets. For this reason, it is advisable to replace the chain and cassette at the same time.

Procedure

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).

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.

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.

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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.

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.

  • 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 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.

remove, sprocket, sports, bike

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 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.

  • We put on a protective plastic ring;
  • If the stars themselves are not fastened to each other, then they should be worn 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.

Required tools

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

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

Disassembly process of the transmission cassette

Some theory beforehand. On the rear wheel there can be two variants of parts related to 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. There are no more than seven gears in a set. As for the mount, it has a thread with external installation parameters.

Let’s focus on the ratchet right away. Changing the rear sprocket 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.

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

  • Take the bicycle wrench 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.
  • 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, then it is better to replace the entire cassette at once. This option is also desirable when 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

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 To Install a Motorcycle Chain and Sprocket Kit from SportbikeTrackGear.com

  • 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.

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.

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.

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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 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 bolted to the base with a hex bolt. Everything that is higher in cost can be freely disassembled thanks to two common hex 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 cannot be removed 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 adhere to 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 there is one) 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 also 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 least number of teeth. It is held by a retaining ring having a left (reverse) thread. When unwinding, you can hear a characteristic crunch, sometimes a grinding sound. No need to worry, extraneous sounds are caused 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 faces of the star and the 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

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 the factory geometry Appearance of a wave between the teeth

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.

READ  How to put a chain on a bike at speeds

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:

  • connecting rod puller;
  • spanner key;
  • hexagons;
  • new detail;
  • clean cloth and grease.

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.

remove, sprocket, sports, bike

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.

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.

Delboy’s Garage, Motorcycle Front Sprocket Change.

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.

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.

How To Replace Your Motorcycle Chain & Sprockets | MC GARAGE

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.