Adjustment on speed bikes
How to tighten the chain on a bike at speeds such as a mountain bike? For a high-speed bike, if tightening the links in the first two methods did not give the desired result, then you can try two other methods.
The first method only works for high-speed bicycles that have already traveled with a weakened spring, that is, with an old derailleur. On a new one, you simply cannot do it manually. The first step is to remove the links from the gears. Next, knock off the stopper on the switch and rotate the switch in the direction of greater spring tension.
The second method of chain tensioning on a bike at speeds is not difficult at all, but sometimes it works.
To tighten the chain on a regular bike, you need to set the transport with the wheels up. This is the most comfortable position for loosening the rear wheel nuts. When unwinding, it is easy to set the optimal sag and tension of the bike chain. You need to move the wheel along the grooves. The mechanism is fastened only in a parallel position of the axis relative to the carriage shaft. The correct slack is 5 mm. When tightening the chain, there is a difficult rotation of the pedals. Insufficient tension will cause the mechanism to kick off. Sometimes there is a tight stop of the wheel in the edges of the grooves and the extra links are removed.
Features and special cases
Despite the fact that many bicycle chains are equipped with a special removable link, some of them do not have this moment. This can baffle a novice mechanic. there is no desire to spoil the part, and how to tighten the chain on a bicycle is unclear. In reality, this issue is solved simply: a rivet is knocked out of any link with a thin steel rod or a special squeezing device. The work is carried out in the following order:
- 2 rivets are removed from the link;
- an extra link is removed;
- the chain is connected and installed so that the closed end of the stop plate is located in the direction of its rotation;
- the open part is firmly riveted.
You are now ready to self service your bike drive.
Adjusting the bike chain
In order to set the required tension, the bike is turned over and placed on a saddle or rack. The rear wheel can be removed by loosening the nuts or loosening the eccentric clamp. The brake lever and bracket on the stage are lowered so as not to interfere with the work. Further, the chain is disconnected with a lock, its excess part is removed, and after shortening it again returns to its place.
If your bike is of an old design (with horizontal dropouts), then all the processes are simplified by an order of magnitude. It is enough just to move the wheel further along the guides, and the question of how to put the chain on the bike correctly will be solved. However, in this case, it is necessary to control the wear of the links, since neglecting them can lead to breakage of the stars.
Cleaning and maintaining the chain
Preventive measures to minimize transmission wear should be carried out regularly. To do this, remove the contaminated chain and wash it with a solvent. There are special devices that can help with this process and keep your hands clean.
They are called washes: they are a box with special brushes, rollers and guides, filled with a liquid that washes away dirt particles. If you carry out such a procedure regularly, then the problem of how to tighten the chain on a bicycle will not bother you, and the part will successfully serve for several seasons.
If cleaning has not been carried out for a very long time, then rust will form, which is much more difficult to remove. It is necessary to immerse the chain in a container with a corrosion converter or kerosene (it is best to use an aviation one, since it contains the least amount of impurities) and keep it for several days. Next, it must be removed, cleaned with a metal brush and left to dry in the sun. After a while, each link must be lubricated with oil from a special oiler and set in working position. We have already discussed how to tighten the chain on a bicycle at the beginning of the article, so there will be no difficulties in this matter. It is important to follow logic and your own intuition.
How to tighten a chain on a bike at speeds
In relation to high-speed vehicles, there are two more ways to adjust the tension of the bicycle chain correctly.
Method one for pulling up the chain on a sports bike:
- remove the links from the gears;
- carefully knock down the stopper on the speed switch;
- turn the switch towards the spring tension. Thanks to this action, the part is automatically tensioned to the desired level.
Method two. just pull up the switch cables (in some situations, this method may come in handy).
These methods will perfectly cope with the problem of chain stretching.
Rear wheel removal Shimano Nexus 3. Be Dutch! Bicycles
A bicycle drivetrain also has a lifespan. One piece is designed for 3-4 riding seasons. After which a replacement will be required.
There are many reasons why a part may wear out.
- Mechanism age.
- Weather conditions that adversely affect the performance of this part (rain, snow, dirt, dust, small particles, etc.).
- Chain production quality.
- Improper care of her.
When performing all the points of tightening the chain, there will never be any difficulties with the transmission. All the experience that can be accumulated in the process of tightening the chain will definitely come in handy. You can also share your experience with friends and family. After all, every person who drives such a vehicle may have a similar problem.
We recommend another video from an expert:
How to change the rear wheel on a speed bike
During the spring revision of my old high-speed bike, I found an eight on the rear wheel. a change in its geometry. The rim was bent so much that it constantly touched the brake pads, making it impossible to drive safely.
Cycling Tips: Removing the Rear Wheel || REI
First we decided to tighten the knitting needles. There are special ways to do this at home. For those who are interested, it is enough to search the Internet for how to fix the eight. A closer inspection revealed that a pair of spokes was missing. The plastic spoke guard installed on the wheel makes it difficult to install new ones, so it must be completely disassembled.
Turn the bike upside down, unscrew the eccentric clamp nut, remove the eccentric itself from the hole in the axle, release the footrest, remove the chain and wheel. In this case, you need to loosen the brake pads and release air from the wheel so that the tire does not cling to them.
Unscrew the nipple, pull out one side of the tire, gently prying it with a flat screwdriver, without tearing the camera. Take out the camera, then remove the tire.
Now you need to remove the asterisk. It is impossible to do this without a special puller, so we took care of its purchase in advance.
Inserts the puller inside the sprocket and unscrew it with a gas wrench. By the way, for these purposes, any key for 24.
Our speed bike had a single rim wheel. Almost all modern bikes are equipped with double rim wheels. It is believed that they are stronger and more reliable. The difference in price is not very big, so we listened to the seller and bought a copy with a double rim.
At first, the plan for replacing the rear wheel on a speed bike seemed simple: screw the sprocket onto a new one, insert the tube, insert the tire, and mount it on the bike. But upon closer inspection, it turned out that the wheel axles are different. The old one. with a hole inside for the eccentric, and the new one. without it.
Therefore, I had to rearrange the axle from the old wheel to the new one. This requires 2 keys. We hold the locknut with one, and unscrew the other with the other. Having unscrewed, remove the washer and unscrew the locknut, which is the bearing boot. When unscrewing the nut, watch out for balls that may fall out of the gap formed. Now you can remove the axle.
In the same way, we remove the axle from the new wheel. The grease in it is fresh, thick, so the bearing balls, sticking to it, were in their place.
Carefully, adding fresh grease, insert the axle with a hole for the eccentric onto the new wheel and tighten the nuts in the reverse order.
It is necessary to tighten the nuts with a cone for the bearing until there is no play in the carriage, but at the same time the wheel rotates freely. On both sides of the axle along the edges, we leave a space equal to 1 cm so that it fits into the eyes of the rear fork of the bicycle. This distance is adjusted with a bushing washer. Tightening the second nut, we fix the first with a key so that it does not move, otherwise the wheel will spin with effort.
Then we collect everything in the reverse order. Install the spoke protection, use the puller to twist the asterisk.
On the one hand, fill the tire, insert the camera, fill the tire completely. We pump the chamber with a pump, then bleed the air so that it fits into place.
Now we take the wheel, put the chain on the sprocket and install the axle in the eyes of the fork. The tire, having pressed on it, must be pushed between the brake pads.
Install the footrest, insert the eccentric clip and secure it with a nut.
Let’s adjust the brakes by fixing the pads near the rim. We pump up the camera and make a test drive. This completes the replacement of the rear wheel of the sports bike. If you liked the article, share it on social networks.
Removing a wheel from a bike?
If you have never done something, then you may think that it is difficult to do it. If you have never removed the wheels from a bicycle before, then you may also be afraid that you will not cope, especially with the rear wheel (after all, there is a chain, a bunch of stars and this tricky derailleur!). But now we will tell you everything about this simple operation. There is nothing supernatural here. In short, we have already touched on this issue in the article on how to disassemble a bicycle, and now we will open this topic a little wider. You will have to remove the wheel not only if you need to disassemble the bike for transportation or storage, but also in order to replace the camera, tire or spokes (we will devote a separate article to what the wheels of a bicycle consist of), get rid of the figure eight.
How to remove wheels from a bicycle with rim brakes
If you have rim brakes, release them first. To do this, slide the brake levers towards each other and lift the cable lock up.
If you need to remove both wheels, release both brakes at once so that you don’t have to turn the bike over again. If you have tires with a large tread or they are large in diameter by themselves, then you will have to deflate a little air from the tubes. Now turn the bike upside down (if you have any accessories installed on your handlebars that can be damaged in this position, it is better to remove them in advance). The bike will stand stable enough for any operation, but if you have hydraulic brakes, it is better not to leave it in this position for a long time. air can get into the hydraulic line, which will entail a not very difficult, but tedious and time-consuming process of bleeding the brakes.
How to remove the rear wheel of a bike
If you will be removing the rear wheel, to make it easier to do, loosen the chain as much as possible by switching it to the smallest sprockets. The wheel can be attached to the frame and to the front fork in two ways: with two nuts (less often) and with an eccentric. If your wheels are secured with nuts that screw onto the wheel axle, then you need two wrenches. You just throw one on one side and hold it in this position, and twist the other counterclockwise. It is not necessary to unscrew the nuts all the way; it is enough to loosen them to the extent that they do not interfere with the removal of the wheel. In the event that the wheels are fixed with an eccentric, then everything is even easier: you don’t even need tools. Pull the eccentric lever towards you, then, holding the axle on the opposite side, make a few turns counterclockwise until the wheel is free. Everything, the wheels can be removed. Yes, and the rear one too: just lift it up and remove the chain from the stars.
How to remove wheels from a bicycle with disc brakes
If you have disc brakes, just in case, insert something into the pads, in the slot where the disc was: if they accidentally close, it is very difficult to release them. And if you don’t open it, don’t put the wheel on. The role of something can be, for example, a piece of paper folded several times. And sometimes new bicycles come with a special plastic plug.
The assembly is carried out upside-down. To make it easier with the rear wheel, bring it to the attachment point, put the chain over the sprocket and after that insert the axle into place. Make sure the axle fits into the groove all the way and symmetrically. Are you convinced that there are no difficulties in installing the wheels on the bike? But there is one caveat: in order for the protector to work as it should, it must be oriented in the right direction. For the convenience of orientation, an arrow is drawn on the tire. in this direction the wheel rotates when the bicycle moves. But the fact that the bike is upside down when installing the wheels can be misleading. Therefore, take your time. This does not apply to the owners of bikes with disc brakes. it is impossible to confuse here. Do not over-tighten the eccentric; put the brakes back in place. Everything.
When to remove the rear wheel
It is unlikely that the idea of unscrewing the chassis from the bicycle frame would just come to mind, unless, of course, a person specializes in bicycle dismantling. But this is a completely different case. Dismantling the rear wheel will be required if the following problems are observed:
- noticeable damage to the rim;
- complete wear when a wheel needs to be replaced;
- a flat tire or a burst tire;
- bulkhead bushing.
This includes the planned replacement of the rear sprocket system and chain.
Before removing the bike, turn it over and place it on the saddle and handlebars. It is better to remove awnings in the form of a mirror, bell and lantern in advance so as not to damage them under the weight of the frame. V-brakes are first released and disassembled, otherwise they will not allow the wheel to be pulled out freely. With disc models, everything is easier. you can immediately remove the wheel.
I must say that the removal process itself consists only in unscrewing the eccentric or unscrewing the fastening nuts from the axis of the bushing, who has something. If the mount is an eccentric, simply unscrew the handles and twist the wheel. The nut fastening is loosened with one or two wrenches.
Usually one wrench of the appropriate size is enough, with which the nuts are removed one by one. If the hub axle turns, then the nuts are unrolled simultaneously in different directions. It is recommended to use open-end wrenches or box wrenches. The adjustable version is undesirable, as its thick horns eat up the corners of the nut due to a loose fit and sliding.
Take the survey
- significant damage or malfunction of the rim;
- damage to spokes, tires or tubes;
- bike sleeve repair;
- replacement of a wheel as a result of the complete dilapidation of the old one;
- chainring wear.
In addition to preventive maintenance and repair, dismantling may also be required if the bike is in good working order. For example, when you need to move to another place, but there are no mounts for the roof of the car. Then it is more convenient to disassemble the vehicle into parts in order to transport it in the trunk or in the cabin. In such a situation, you should definitely know how to properly remove the rear wheel on a bike at speeds.
Dismantling and assembly are simple procedures, but only if you know the sequence of operations. In addition, an independent department has a number of other advantages: there is no need to spend money on workshop services, you can do everything anywhere at a convenient time. Plus. improve service skills at the same time.
If for experienced cyclists this is a matter of a couple of minutes, beginners or riders with little experience will have to spend more energy to master the wisdom of how to remove the rear or front wheel from a high-speed bike, and then put the elements back.
When is it necessary
Like any vehicle, a bicycle must be inspected and repaired in a timely manner. One of the mandatory procedures is to separate one or all of the wheels from the frame. The reasons when dismantling is required may be:
Replacing the bike camera
To remove the tire and remove the damaged chamber, it is necessary to remove the remaining air: the cap is unscrewed and the wheel is lowered by continuous pressing on the nipple. If there is no air in the tire, which is more often the case with punctures, then simply unscrew the cap.
To remove the tire, you need special paddles. Of course, you can pry the camera with a regular screwdriver and even a knife, but it is better to have a professional tool. With the help of assemblies, the tire is pushed on from the side opposite to the nipple. As soon as it begins to pull together, you need to pry the sides a little further, until a sufficiently free part of the tire is formed, and it can be safely pulled off the rim.
You need to tighten it very carefully so as not to damage the rim, you should not use too much force. When the tire is removed, remove the damaged camera and install a new one. The nipple is threaded into the hole in the rim, then the chamber is evenly distributed around the circumference.
Attention! The camera must lie flat, without kinks, otherwise you will have to reinstall it. There must be a flipper at the bottom of the rim to protect it from the spokes. If it is torn, you need to install a new one or get by with two layers of thin electrical tape.
On top of the rim, the outer part of the tire is put on, this time, from the side of the nipple. When installing a tire, take into account the correct direction of the tread pattern. Usually, arrows are drawn on the tires, and in the upside down state of the bike, the forward direction is backward in the lower position. However, the rear wheel of a speed mountain bike is easy to go wrong, thanks to the cassette on the side. After mounting, the camera is inflated.
Before removing the wheels from the bike, you need to understand the features of the brake system installed on it. High-speed bikes are produced with different types of devices that differ in the principle of operation. The easiest dismantling. if there is a disc brake, complex and more time-consuming. if there is a rim system. If you do not pay attention to this, but immediately get down to work, there is a high probability that the system will be blocked so that the wheel will be fixed forever and it will become impossible to remove it.
Disc brake Rim brake system
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 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.
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.
To remove them, you need different pullers. 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.
How to remove sprockets from the rear wheel of a bicycle: step by step instructions
With active riding, the bike gradually wears out. To avoid this, you must constantly look after him. On high-speed bikes, one of the most vulnerable spots is the rear of the drivetrain. Therefore, sometimes it needs to be replaced. How to remove sprockets from the rear wheel of a bicycle?
How to remove sprockets from the rear wheel of a bicycle without a puller?
For such an operation, you do not need to purchase a special tool. True, it is much easier to deal with him. In order to remove the ratchet without a puller, you will need:
- gas wrench;
- center punch;
- a hammer.
The ratchet has 2 slots. You need to insert a center punch there and hit it with a hammer. You need to direct it clockwise. You can use a large nail instead. You have to be careful, as there are bearings under this place. With a little effort, you can screw the sprockets.
There is still the inside of the ratchet. It is removed with a gas wrench, which is turned counterclockwise.
How to mount the rear wheel on a multi-speed bike
Correctly carried out repair of a bicycle wheel is not only and not so much correct disassembly, troubleshooting, but also assembly. The entire set of parts must be assembled strictly in reverse order.
- Place all accessories of the bushing mechanism in the drum and secure with the locknuts;
- Place the drum on the spokes of the bike;
- Tighten the spokes to the number of revolutions that they were untwisted. Tightening of the nuts on the spokes is carried out in the direction opposite to untwisting. If the drum still dangles, then tighten it more;
- Slide the cassette onto the hub, observing the following order: main, then single, small stars. The last step is tightening the cassette mechanism with a whip.
Now all that remains is to mount the rear wheel of the multi-speed bike to the frame. Slip the chain over one of the sprockets, then insert the axle into the dropout. The assembly is complete. It remains only to tighten the axle nut or eccentric. Turn the pedals, follow the chain as it moves along the sprockets. If everything is fine, then the speed bike is ready to ride.
How to remove a wheel from a bike at speeds
Every more or less experienced cycling enthusiast knows how to remove a wheel from a bicycle. This manipulation is sometimes needed when a wheel needs to be repaired: replacing a tire, spoke or rim, or simply completely replacing it with a new and more perfect one. Even the most expensive and advanced bike sooner or later presents unpleasant surprises like deformation of the rim, damaged spokes, tubes or tires. The transmission sprockets also wear out, which entails the need for all the same actions described above.
Experienced cyclists can make the change themselves. Of course, there is a temptation to go to a professional workshop, but the cost of such services is quite high. And experience is never superfluous. In addition, it is not a fact that the service workshop is located next to the house. Lugging a bike on yourself is not a pleasant activity. Wouldn’t it be better to tinker with the bike yourself a little? Consider the features of replacing the front and rear wheels of a bicycle.
How to reinstall the front wheel of a bicycle
Here, the same actions appear as in the case of withdrawal, only the order of actions is reversed.
- Slide the bike wheel into the mount so as not to mix up the rotation. Information about the direction of rotation is on the tire, but you must remember that the bike is still upside down. This is important, otherwise eights may appear on the rim;
- Secure the axles with an eccentric or nut. Check the tightness of the fastening so that the wheel cannot fly off while driving;
- Turn the bike over;
- Return the brakes to their original place (in the case of rim brakes).
At the end of all manipulations, check the functionality “hero of the occasion” and the correct operation of the brakes.
Installing the front wheel
As you perfectly understand, the process of installing the front wheel is the opposite of removing it and it makes no sense to describe it in detail.
We put the wheel back, as it was. Do not confuse the direction of rotation of the wheel (written on the tire). Remember that your bike is overturned and it is worth considering the direction of travel. In the case of disc brakes, it is difficult to confuse, since it is necessary that the disc hits exactly between the pads.
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We tighten the nuts or tighten the eccentric
If you have rim brakes, you need to return them to their original condition. We check that the wheel does not dangle, turns freely and the brake functions, otherwise we check everything again point by point.
How to remove the rear wheel?
The rear wheel removal process is COMPLETELY the same as the front wheel removal process. You don’t even need to look at the equipment suspended from the back (you only have to remove the chain from the axle if it gets caught).
Features of high-speed bike hub service
The bushing is a part that needs periodic maintenance. The frequency of maintenance is every 2 thousand km of run. This corresponds to about 2-3 months of active use of the bike. If a creak appears, the bike starts to ride worse, then the problem is most likely in the hub. It needs to be removed and inspected.
The main causes of bushing problems are poor bearing lubrication and backlash. Increased friction or misalignment results in wear on the part very quickly. To gain access to the sleeve, remove the cassette using a puller.
- Insert the puller into the cassette nut;
- Using a wrench, rotate the puller. The ultimate goal is to unscrew the spline nut;
- Remove the small stars, set them aside;
- Remove cassette.
Before you start disassembling the bushing, loosen the tension on the spokes with a wrench (you need a wrench with knocked out holes). Loosen the knitting needles орота turn enough. The bushing has to be replaced if the bearings, together with the axle, are completely worn out. If this is not the case, the lubricant is sufficient. Soak the removed parts in solvent and then lubricate. It is better not to adjust the skewed bearings, but to replace them, since in this state they are definitely faulty.
How to remove the front wheel?
Now carefully turn the bike upside down. In this case, it turns out that he stands on the handlebars and saddle quite steadily. At this stage, you should carefully monitor so that the equipment attached to the handlebars (bike computer, bell, bike headlight, etc.) is not damaged. In addition, it is best to place a cloth under the gear selectors to avoid scratching them. If your bike has hydraulic disc brakes (a hose with brake fluid comes from the brake lever, and not a regular shirt with a cable), then it is not recommended to keep the bike upside down for a long time, in order to avoid air getting into the hydraulic line, since if this happens, you will need to pump brakes (although the process is not complicated, but rather laborious).
Next, we look at how the wheel is fixed to you: is it an ordinary nut or an eccentric (small lever).
3.1. If your wheel is secured with a nut, then you need to take two suitable keys. Throw one on one side, the other on the other, and twist one of the keys counterclockwise, holding the other in place. It is not necessary to unscrew the nuts all the way, but simply loosen until the wheel can be safely removed.
3.2. If your wheel is fastened with an eccentric, then everything is generally simple. no tools are needed. We pull this eccentric towards ourselves, as shown in the figure, after which it is necessary to unscrew it a little more counterclockwise, holding it on the back side with your hand until it becomes possible to pull out the wheel.
At the last stage, simply pull the wheel up, and if you did everything correctly, it can be easily removed. On bicycles with disc brakes, do not press the brake lever with the wheel removed, as this may compress the pads, and you will have to tinker with them too.
Any cyclist has to deal with one or another malfunction of a bike in one way or another. Despite the simplicity of the manipulations, the first removal and replacement of a wheel, as a rule, takes a lot of time. In the future, with practice, the bulkhead, dismantling and installation will take literally minutes.