How to remove gears from the rear wheel of a bicycle

How to remove a bike cassette

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

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

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

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

Step-by-step instructions for removing the cassette:

  • The bicycle wheel is removed, a special puller is installed. You need to pay attention to the correct installation of this tool: its slots must completely enter the grooves of the retaining ring.
  • The “whip” key is taken into your hands and placed on the sprocket in such a way that the fragment of the bicycle chain on the key is on the sprocket teeth. Please note that the handle of the “whip” should be to the right of the cassette, a fragment of the tool chain. at the top.
  • An adjustable wrench is placed on the cassette remover and rotated counterclockwise. Simultaneously with this movement, it is necessary to firmly hold the “whip” key in a fixed position. thus, 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 breakage of the “whip” key. Experts recommend to put 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.

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 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 high-speed or mountain bike.

With 6 stars

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

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

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

Why might you need

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

With 7 stars

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

Stages of installing new stars

How does assembly work when replacing a bicycle cassette chainring?

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.

READ  How to adjust the carburetor on a Honda Dio scooter

Disassembly process of 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. The set contains no more than seven gears. 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, we 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 home 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

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.

Bicycle sprocket care

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

How to remove rear wheel with a derailleur on a bicycle.

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

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

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

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

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

How to remove 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 a straight 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.

READ  How to properly adjust your saddle on a 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 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, the 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. whether everything is in order and whether it is necessary to adjust the speed switch.

How to replace a sprocket on a bike?

Replacing the sprocket should begin 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.


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;
  • Use a whip to fix the cassette in one place, 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 a bike cassette

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

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.

remove, gears, rear, wheel

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.

Useful to pay attention

Cycling is both a sport and a hobby. and more fans of this two-wheeled vehicle unite in various organizations and movements, organize bike rides or simply travel with their families and friends in the picturesque surroundings of their native land.

A bicycle, like any other mechanism, requires regular maintenance and repair. To tighten or replace a broken spoke of the rear wheel, as well as adjust and lubricate the axle bearing, it is necessary to learn how to remove the rear sprockets (this procedure involves the use of a special tool and adherence to a certain sequence of operations).

How to remove the sprocket from the rear wheel of a bicycle

Required tools

To remove the old part, just like when dismantling the ratchet, only 3 tools are required:

  • a puller for a two-wheeled vehicle retaining ring. needed to unscrew the nut;
  • The key whip is a tool with a bicycle chain. It is necessary to fix the position of the cassette, because dismantling occurs with a freely rotating wheel;
  • adjustable or box wrench.


After you have prepared the necessary tool, proceed with the dismantling process. Detailed instructions on how to remove the cassette from the rear wheel of a bicycle are presented below.

  • Remove the rear wheel of the vehicle. To do this, unscrew the nut holding the rear tire axle and pull out the brake mount. Then shoot the camera itself.
  • Examine the cassette carefully for signs of damage or wear, decide that replacement is really necessary. Along with this, assess the condition of the bearings by shaking the axle in different directions. If there is a lateral clearance on the axle, they will soon need to be replaced. It is better to entrust this procedure to specialists, independent repairs can be carried out only after a detailed study of the instructions.
  • To dismantle a damaged cassette, place the wheel on a flat surface with the part up. Use a whip and a special puller: roll the whip fixed to the largest sprocket, pointing the tool to the right. And the puller must be inserted into an available pass near the axis.
    The thread on the ring with a dozen teeth is standard and unscrews counterclockwise. You will need a lot of strength to move the circle from its place, do not be intimidated by the grinding that occurs due to the locking teeth.
  • After elimination of the stop ring, the cassette moves to the side and protrudes. It is highly likely that it will split into parts: individual stars, gaskets and other solid elements.
  • Now replace the cassette, remember, the new bike rear wheel cassette should have the same gear ratio. All elements of the system are designed for certain indicators and any replacement of a part violates the overall balance of the device. Usually, the gear ratio is indicated on the cassette sprocket, you can also calculate it yourself by counting the number of teeth on the largest and smallest “gear”. these numbers are the desired indicator. Do not forget about the special spacers placed between the main parts.
  • After fixing the sprockets in their original place, screw the ring and cassette. Do not use all your strength, the threads on the parts are shallow and rough operations can ruin it. The cassette is connected by a locking circle with special teeth that do not allow it to be unscrewed.
  • After returning the ring to its proper position, tighten the nut securely and return the wheel to the rear fork of the bike. This step is similar to the first paragraph in the instructions, only the opposite is true.
READ  How To Move A Bicycle Correctly

It is known that the bike will not budge with faulty sprockets, periodically check their condition and change them in time. Often, along with the cassette, the chain also wears out. Therefore, assess its condition and, if necessary, tighten or shorten, and also lubricate without fail, since you could inadvertently erase all the substance from the metal surface.

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 fastening.

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.

How to Remove Bike Cassette Without Special Tools (IMPROVED

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

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.

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

To remove the transmission sprocket on a single speed bike, simply open the retaining ring. Many singlespeed fans argue that the “native” retaining ring is useless and sometimes breaks, even if there is no question of 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.

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.