Remove the rear sprocket from the stealth bike

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.

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.

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 A somewhat outdated model typical of inexpensive speed bikes.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.

remove, rear, sprocket, bike

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

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 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.

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.

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.

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.

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.

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Replacing the cassette on a bicycle

Assembling the cassette is done in the same way as disassembling, only in the reverse order, so it is so important to remember it, especially if you are doing it yourself for the first time.

  • Put the chain on the star.
  • Reinstall the rear wheel and tighten it firmly until it stops.
  • Check secure fit.
  • Turn the bike over. And everything is ready!

How to remove the cassette from the rear wheel of a bicycle: necessary tools, video

The transmission of a bicycle needs regular inspection and maintenance, the chain or sprockets wear out the fastest. A poor system condition will shorten the life of the vehicle and make driving dangerous. Therefore, the question arises of how to remove the cassette from the rear wheel of a bicycle in order to replace it.?

To do this, you do not need to know the complete structure of the rear wheel, but it is worth reading information about it in order to understand the process of operation of this unit itself. Only after you have prepared theoretically, proceed directly to the dismantling process.

  • 1 Required tools
  • 2 Sequence of actions
  • 3 Videos

To remove the old part in the same way as 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, self-repair 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: rotate 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.

Important! Removing the cassette from the bike without a puller will be problematic. you will spend a lot of time and effort.

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: separate stars, gaskets and other solid elements.

Advice! Remember the sequence of asterisks and other elements, so that after removing them, return everything to its place.

  • 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.
  • 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.

    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).

    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.

    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.
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    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 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.

    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.

    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.

    A little about singlespeed

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

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

    Sprocket changing Tips.- DIY. How to (best way 🙂

    As you know, without serviceable stars and chains, a great cannot even move. Timely replacement of transmission system components is an essential part of repairing any type of bike. from simple two-wheeled road bugs to road and mountain superbikes.

    Dismantling the transmission cassette

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

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

    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.

    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 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.

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    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.

    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.

    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.

    Removing the Bicycle Cranks

    Remove or unscrew the dust cap. It is enough to pry some plugs with a screwdriver, and some will have to be unscrewed.

    Unscrew the bolt (or nut) that pulls the connecting rod to the carriage and remove the washer (if any). To do this, you need a box wrench (usually 14), or an 8 hexagon with a square connection or a 10 hexagon with a spline connection.

    Take the crank puller and remove the entire inner screw.

    Please note that with a square connection, the inner screw should be narrower and the adapter cover must be removed (if it is on the key), and with a slotted connection it is wider, respectively, the adapter cover must be put on. Be careful, there have been cases when people did not remove the cover, as a result, it rested against the connecting rod itself, and not against the carriage axis. As a result, they tore off the threads on the connecting rod.

    Screw the puller into the connecting rod. Tighten the puller all the way, otherwise it may break off and damage the threads.

    Tighten the inner screw of the puller with a wrench. Turn it clockwise and you will see how the connecting rod leaves its place.

    After removing the connecting rod, unscrew the puller.

    If the connecting rod does not give way, do not use too much force, otherwise you can break the thread and then it will be even more difficult to remove it. Refill the compound with oil or WD-40 and try again. When the connecting rod puller is not at hand, you can unscrew the bolts tightening the connecting rod and the carriage and ride several hundred meters without them. After that, the connecting rod should be easily removed if you lightly tap on it with something weighty (through a wooden block or stick). You can also heat the junction of the connecting rod and the carriage, but do not use any burners for heating, they will harm the connecting rod, heat by pouring boiling water.

    And one more thing, if you need to remove the pedals, then it is better to unscrew them before removing the connecting rods, it will be easier this way.

    Installing Bicycle Cranks

    Before installing the connecting rods, clean the joints on it and the carriage from dirt. Then lubricate the inside of the connecting rod with grease.

    rear cog change

    Place the chain on the bottom bracket assembly (when installing the right crank arm), slide the crank arm onto the axle and tighten the tightening screw.

    When putting on the opposite connecting rod, do not confuse its position.

    The bolts must be tightened very tightly. If it is not enough to tighten them, then backlash may form during driving.

    Slide the dust caps and chain over the sprocket.