How to remove a sprocket from a bike without a puller

Dismantling technology

Here is a step-by-step photo guide explaining the process visually.

remove, sprocket, bike, puller

Puller application

A special device that is designed to dismantle hard-to-remove parts is called a puller. This is a no brainer. In our case, to remove the connecting rod from the bicycle carriage shaft. It looks like this.

This type of connecting rod puller provides the ability to remove the pedal as well.

The connecting rod is held on to the shaft by a heavy-duty 8mm head bolt. It is not difficult to unscrew the bolt. But the difficulty is that the connecting rod sits on the shaft with a slight interference fit and has a tapered fit. Very often, in wet weather, water and dirt penetrate into the interface between the connecting rod and the shaft. Then it sticks to the shaft and it is almost impossible to remove the connecting rod. But in our toolbox, of course, there is a puller for connecting rods, which is a complex turning part. a screw with a two-level head for an open-end wrench and a socket. A cunning nut with external and internal threads is screwed onto the screw. It takes a long time to explain, but in the photo everything is very clear.

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Probably, no part of the bike has more load than the connecting rod. On the models of recent years of release, for their manufacture, instead of steel, various alloys began to be used. This makes the structure lighter and more robust. Sometimes, to reduce weight, the connecting rods are made hollow, they are also made of composite material, which somewhat increases the cost of the bike itself, but also greatly facilitates it.

On inexpensive bicycle models, a non-separable sprocket connecting rod block is made. An inconvenient and impractical option, because when replacing the sprockets, you will have to change both connecting rods at once. If you started to repair the carriage or replace the stars, then we recommend that you immediately replace both connecting rods with a design that involves a detachable connection of the connecting rod and sprockets.

When is it necessary to dismantle the connecting rod

The connecting rod does not imply any maintenance and special care. Its replacement is carried out only in the case that we described above and in case of mechanical damage. The need for dismantling arises when we need to get to the carriage or completely disassemble it for lubrication, flushing or adjustments.

Also, sometimes after the rain, an unpleasant creak occurs, which is caused by the ingress of sand into the connecting rod-shaft interface. In this case, you have to disassemble it and clean the seat.

It’s just that the connecting rod will not be removed and for this you need to apply either a certain manual dexterity or a special puller. We will tell you about these methods in detail.

Dismantling without puller

In this case, scientific and technological progress offers few options.

As you can see, we cannot get away from advanced technologies and progressive methods. Even in such a seemingly trifling matter.

Carriage Removal Process for a Newbie

Undoubtedly, it is always difficult for a beginner in this or that business. But if there is a certain desire to do something with your own hands, then you need to learn and do. We present you with a description of how to remove the carriage from a bicycle with your own hands.

Doing so-called maintenance of your own vehicle is better than trusting it to a stranger. After all, you will clearly know what works great in your device and what needs to be eliminated. If you have the necessary tools for various work with the bike, then you can carry out a number of actions yourself.

In order to remove the carriage from the bike, as well as remove the pedals from the bike carriage, you need to prepare in advance a number of tools that will be at your fingertips. These tools include:

  • a wrench for nuts or an adjustable character;
  • for connecting rods, a special squeeze is required;
  • flat-type screwdriver;
  • hammer, but small;
  • a tool that allows you to remove the carriage itself.

On a device such as a bicycle, the carriage is a bearing assembly. The main essence of such a mechanism is to connect the connecting rod to the frame. In addition, a product such as a carriage provides so-called torque to the connecting rods. Based on this, it can be understood that such a detail is very important on a bicycle, its condition affects a lot.

The design of modern bicycles implies a special glass for such a material as a carriage. This glass can be found in a specific area of ​​the rear pipe. As a rule, manufacturers install a carriage cup in the area of ​​the rear stays. Due to the fact that the device is installed in such a vulnerable area of ​​the bicycle, its durability is poor. From this it turns out that there is a need to check the device and repair it from time to time.

It is negatively affected by dirt, dust and rain. For this reason, backlash is formed. If you do not clean it in time and prevent damage to this product, then this threatens with a mass of negative nuances. During movement, you may encounter a decrease in potential speed or jamming of the device.

Therefore, advice on how to remove the carriage from the bike is quite relevant.

Puller Features

Before you know how to remove the carriage from a mountain bike, you need to learn about the puller tool. It must be chosen taking into account the appearance and structure of the carriage itself. Often the manufacturer of the carriage must match the manufacturer of the puller. Today, there are universal types of puller in the world, but, unfortunately, they may not be suitable for one or another mechanism. This mechanism is perfect for removing so-called carriage cups. This is precisely the main feature of the mechanism. Therefore, when using such a device, you should be extremely careful and attentive.

And how to remove the carriage from a bicycle without a puller?

Characteristic qualities of this type of repair

Every bicycle owner should know how to remove the carriage from a bicycle. It is worth noting that if the manufacturers of your bike have installed such a closed-type mechanism in it, then there is no point in repairing it. Such devices, as a rule, are disposable and the best way out of this situation. replacement of the old unit with a new one.

In the same case, if your mechanism is open type, then everything is somewhat different. It can be easily removed, repaired and reinstalled. Bicycle repair experts say that a bottom bracket. a fairly simple mechanism that can be easily repaired.

When carrying out repairs, it is necessary to do a number of actions:

  • It is necessary to lubricate all parts that are present in the mechanism.
  • Backlash must be eliminated.
  • If there are any sounds when driving, then they should be eliminated.

Convenient instructions for removing this carriage

A lot of people are wondering how to remove the bottom bracket from a bicycle without a puller. The question is quite interesting, but first, let’s look at the instructions for the standard process. It is important to remember that the design of this product contains small bearings, which often crumble. Therefore, you must understand that it is necessary to carry out the removal and repair with accuracy and care.

How to remove the bottom bracket from a bike without a puller?

Despite the fact that a bicycle is a simple structure from a technical point of view, it still needs to be checked and technical equipment and all kinds of maintenance must be carried out. With the help of these procedures, you can greatly extend the life of your device. In addition, if you follow all the rules and more often look closely at the condition of the bike, then you can warn it against significant types of repairs, which are also quite expensive.

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It is worth noting the fact that there is absolutely no need for minor repairs or inspection of the bike to contact service centers. In this article, we will tell you how to remove the carriage from the bike, due to which you can save on service centers. Consider all the direct nuances of this process and other things that you will definitely need.

Instruments

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

  • Special extractor for the spline nut of the axle;
  • Whip. a metal key with a piece of bicycle chain fixed on it, consisting of 10-20 links;
  • Large adjustable wrench or socket wrench set;
  • Retaining ring puller.

How to remove and change the cassette from the rear wheel of a bicycle

Timely bike drivetrain maintenance is a must for a comfortable ride. Most often, the chain wears out and one cassette sprocket fails or several at once. It is required to replace the failed element with a new part. But how do you remove the sprocket from the rear wheel transmission? First you need to disassemble the cassette.

Removing and installing the cassette sprocket

The cassette differs from the ratchet system by the possibility of a separate replacement. It is enough to remove the worn-out element and replace it with a new one. The stars are fixed using special rivets with small spacers between them. Due to the fixed position of the stars, it is much easier to remove the cassette. The screwing up of the alleged star itself is simple, mainly you need to do everything sequentially. The sequence primarily concerns large cassettes of high-speed mountain bikes.

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Some cassettes are equipped with “spiders”. sections of rigid fixation from a set of sprockets. In this case, the kit is completely replaced, even if the only sprocket is worn out. This rule only applies to large transmission sprockets.

Replacing a single chainring sometimes makes it difficult to switch the chain to it. This complexity is due to the incompatibility of the existing chain wear with a brand new sprocket. A single detail does not play a special role, but a set of brand new asterisks will lead to disharmony in the transmission. To avoid such a phenomenon, it is advisable to change the cassette together with the chain.

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.

When installing a cassette on a bike, there are some important things to keep in mind:

  • 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 on 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 cassette

The dismantling procedure is simple and is performed using a set of tools:

  • Wrenches. The wheel is removed with an open-end wrench, and the cassette itself. with an adjustable.
  • Cassette puller with whip.

Getting started. dismantling the rear wheel. Unscrew the necessary nuts with a wrench and release the rear sprockets from the bike chain. Mounting and dismantling a mountain bike wheel takes a minimum of time and takes place without any hesitation, thanks to the eccentric fastening.

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The eccentric is installed on the spline nut of the transmission cassette. We prevent the cassette from turning with a whip. a small flat knife with a part of the chain. We begin to rotate the cassette remover with an adjustable wrench, and fix the large transmission sprocket with a whip in the opposite direction.

Since loosening the nut is a laborious process, you will have to make every effort. Force is also required to install the cassette stars back. When the nut rolls up, the cassette is easily detached from the wheel. To determine the asterisk to be removed, carefully examine the elongated cassette.

Dismantling a cassette is often accompanied by pulling out several outer stars. In this case, we clean them and check for wear. As for the main stars, the rules are identical to the outer ones.

Removing the ratchet

On some bicycles, the sprockets can be set like a ratchet. In order to remove it, you must:

  • Remove the rear wheel and chain;
  • Insert the puller into the ratchet bushing;
  • Put an extension wrench on the puller and turn the ratchet counterclockwise.

Next, you need to disassemble the block of stars, carefully laying out all the parts in order.

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The difference between a ratchet and a cassette

Before removing the sprockets from the rear wheel of a bicycle, you need to decide on their design. It is important to distinguish between ratchet and cassette. Although they are similar in appearance, they are very different inside.

In the ratchet, the freewheel is installed together with the sprockets. It is such a monolithic system that is simply screwed onto the bushing. The cassette can be disassembled, so one worn sprocket can be replaced. Unlike a ratchet, it is not a monolith with a freewheel mechanism, but is put on it.

You will need different pullers to remove them. It is important not to confuse them with each other, because they are not interchangeable. They have different splines. If you are still afraid not to distinguish a ratchet from a cassette, a photo will be an excellent tip in this matter.

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 factory geometry Appearance of a “wave” between the teeth

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:

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

Remove the right crankshaft axle fixing bolt with a hexagon.

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

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

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

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

  • Install 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, 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 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.

When installing a cassette on a bike, there are some important things to keep in mind:

  • 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 on 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.

Why is it needed?

The most common problem is chain wear. If not replaced in time, it will begin to bore stars. Everyone has their own favorite show that they use the most. Over time, the chain on it will begin to spin if a heavy load is applied. Therefore, you need to learn how to remove sprockets from the rear wheel of a bicycle. As soon as such a skill is acquired, you can fix any breakdowns yourself. This will save you a lot of money on workshop maintenance.

Why is this necessary? You can remove the sprockets from the rear wheel of the bike for both regular lubrication and a complete replacement. They will also interfere if you need to replace the spokes on the right side or get to the hub itself.

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 remove cranks from a bike without a puller? Helpful hints

Bicycle transmission tends to wear out even with proper and timely care. Most people, of course, do not have special bicycle tools, and if you suddenly felt an urgent need to replace its components, then most likely you wondered. how to remove the connecting rods from a bicycle without a puller and is it possible to do it yourself? To deal with this, it is worth learning more about the connecting rods themselves and the types of carriages.

Repair without tools is possible

Ordinary users are unlikely to have a connecting rod puller somewhere, especially for the Octalink, although it costs a penny. But sooner or later the moment will come when either the system or the carriage will become unusable and require urgent replacement. If you have the necessary tools, the replacement of these parts is carried out in 10-15 minutes.

The easiest way to remove cranks from a bike without a puller, as mentioned above, is with a hammer. It is relevant for both Octalink and a regular square. The subsequent actions look like this:

  • Remove the plugs from the connecting rods, if present.
  • Using a 13 mm wrench, remove the carriage bolts. Many carriages today have 6mm hex bolts.
  • If you don’t want to visually damage your bike cranks, wrap them in several layers of thick fabric, cardboard, tape, or take a pine block a few centimeters thick. Ideally, a mallet is suitable for such an unusual task.
  • Flip the bike over against the handlebars and saddle.
  • Begin tapping the connecting rod with moderate force from the inside, as close to the axle as possible. You can hit the connecting rod from time to time from the outside in order to somehow stir it up.
  • If the structure is pressed very tightly, you can try to hit pointwise with a chisel or a barb attached to the connecting rod head.

Please note: Using this method, you can damage the frame, the bottom bracket assembly, or the connecting rod itself. In addition, any impact on the stars is likely to deform them and render them unusable.

It is worth saying that removing stuck connecting rods can be problematic, even with a puller. Most likely, in this way you will not be able to remove the stuck bicycle crank, no matter how hard you try. But do not despair, for such cases, other methods have been invented.

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What are the pullers

A bicycle crank wrench is a special tool (usually a press) that makes it much easier to remove the system, unlike a hammer.

Each of the above standard has its own puller. In the case of a square shaft, Octalink is a kind of press, which is screwed into the connecting rod head itself, rests on a special platform against the carriage shaft and, by screwing in a nut, breaks the connecting rod. There are cases of breakage of the thread of the connecting rods themselves, if the system was pressed very hard.

The left end cap with Hollowtech II requires a special sprocket wrench. The clamping bolt is tightened with a force of only 1-2 N / m, so a key of this standard is usually plastic, inconvenient, and the cover can be easily unscrewed by hand.

A special tool is good, and every bike lover should get it. But still, let’s move on to the main question. how to remove the bicycle cranks without a puller?

Radical approach

If the parts are not stuck, the previous methods will help you remove the bicycle crank arms without a puller. As you can see, the options are quite elegant and, with the right approach, will not harm either the bike or you. But it also happens that spare parts stick very strongly. Especially often at the points of contact aluminum / steel or steel / steel.

In this case, an angle grinder or drill will help. It is difficult to name a specific method of cutting, since the design of frames and systems can be very diverse. On some bicycles, you can simply cut off the crank shaft, on some you can try to drill the largest hole in the place of the thread, which, under the influence of vibrations, will help to destroy the connection or break the metal.

A bonded joint can be destroyed by temperature extremes. Heat the connecting rod head with a torch, for example, and then cool it down as hard as possible. Due to the physical properties of metal, there is a chance to remove the bicycle cranks without a puller as soon as the structure cools down.

You can experiment by combining the above methods, or try your own unique.

A little about standards

On bicycles of different classes, it is logical to install bicycle cranks and carriages of different standards. At the moment, the following types of carriage assembly are popular:

  • Standard square mount. the old look for budget bikes.
  • Octalink, invented by Shimano. It has several subspecies, including standards from other manufacturers that are very similar in design. In fact, it is a kind of “square” carriages, but has a redesigned shaft and modified splines.
  • Hallowtech II is considered the best option in terms of stiffness / weight ratio, but it costs more than others. Also invented by Shimano.

On older bicycles, wedges were a common type of fastening. There were quite a few problems with such a system, which is why it remained in the last century. Now they are practically not produced, and even the most budgetary bicycles are equipped with carriages with a square shaft.

When to remove the connecting rod

Usually, the connecting rod does not need any special maintenance or service. This part can be replaced in three cases:

  • Since inexpensive bike models are equipped with a non-separable block of a connecting rod together with sprockets, the design is completely replaced. Both new sprockets and two connecting rods are installed as a whole. Considering that a non-separable unit is considered a very inconvenient and impractical option, it is advisable to replace it with a design with a detachable connecting rod and stars.
  • Subject to mechanical damage. The inevitability of removing the connecting rod is due to the need to get to the carriage part, which sometimes requires disassembly, lubrication, washing, adjusting settings.
  • When an unpleasant squeak occurs, which usually appears after rainy weather. As a result, sand gets into the connecting mechanism. Then the connecting rod is disassembled, and the seat is cleaned.

Find your sport

The need to remove the connecting rod appears subject to its replacement, the installation of new stars, the adjustment or dismantling of the carriage. The connecting rods are displaced with the appropriate key. a connecting rod puller.

The tool is presented as a screw having a two-piece head. One section looks like a socket wrench, the second. faces for an open-end wrench. A nut of a unique configuration is screwed onto the screw, equipped with a double-sided thread from the inside and outside. Usually, the puller is supplemented with an adapter, which is necessary when working with carriage elements of spline connections.

It is necessary to make the purchase of new connecting rods taking into account their manner of attaching directly to the carriage. The mount is square and slotted. The latter option assumes several standards. In parallel, the length of the purchased connecting rod is taken into account. Thus, excessive length of the connecting rod creates obstacles when the vehicle is moving over rough terrain. In turn, short connecting rods will require additional effort from the rider.

A step-by-step guide to removing the crankset from a bike

To remove the connecting rod from a personal bike, the sequence given must be followed.

  • Pulling out or unscrewing the boot-cap. A certain part of the plugs can be easily pry off with an ordinary screwdriver, and there are those that require unscrewing.
  • Unscrewing the bolt / nut pulling the connecting rod directly to the carriage, then removing the washer, if equipped. The procedure is carried out with a spanner wrench, mainly at 14. Alternatively, you can use a hexagon at 8, provided a square connection, and by 10, it is suitable for a spline connection.
  • Using the connecting rod puller to completely remove the inner screw.

Attention! Since the square connection requires a narrower internal screw, the adapter plate on the key plane is removed. The spline connection is characterized by a wider hidden screw, so the adapter plate is put on. Be vigilant, since there are known moments when the adjuster left the pad, which is fraught with its emphasis on the connecting rod instead of the intended carriage axis. As a result, the thread on the connecting rod underwent a breakdown.

  • Screwing the puller into the connecting rod. The puller is fully tightened. If not tightened fully, there is a high likelihood of breakage and damage to the thread.
  • Tightening the internal screw of the puller. You will need a wrench to turn the screw clockwise. There will be a noticeable displacement of the connecting rod from the point.
  • As soon as it was possible to remove the connecting rod, the puller is unscrewed. If you find it difficult to remove the connecting rod, there is no need to overdo it, as the thread will break and dismantling will only become more difficult. In this case, it is advisable to grease the connection or spray it with WD-40 aerosol, and then try again.

In the absence of a connecting rod puller, it is allowed to resort to unscrewing the bolts that tighten the connecting rod to the carriage. Some hundreds of meters can be driven without parts. Such a short trip makes the connecting rod easy to remove. It remains only to knock on it with a wooden block or stick. Sometimes a different method is used: the connecting part of the connecting rod with the carriage is somewhat heated. Do not use burners as the connecting rod will be damaged. Heating is done by pouring hot water.

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