How To Tighten The Gearshift Cable On A Bicycle

Changing the gearshift cable on a bicycle

Replacing the gearshift cable on a bicycle. Step-by-step instructions and necessary materials

The cable is an inexpensive but important element of a bicycle’s gear shifting system. Like any parts, it deteriorates over time. The transmission system stops working. Replacing the gearshift cable on the bike will restore the mechanism to work.

How To Tighten The Gearshift Cable On A Bicycle

Replacing the shift cable on a bicycle

Timely replacement of the gearshift cable on a bicycle is a guarantee of the normal functioning and integrity of the mechanism. In the gearshift system, the cable is the simplest and most inexpensive part. Does not require special attention during operation, but it can wear out. It doesn’t matter what model of bike you have and its cost. the cable may become unusable unexpectedly. Replacing the cable is a simple procedure, it is quite possible to do it yourself.

Cycling rope for gear shifting

When the cable may need to be replaced

If knocks and vibrations occur during gear shifting, the first step is to inspect the shift cable. Often it is he who is the culprit of the breakdown.

The main prerequisites for switch failure are dirt and water. Such problems appear when cycling in the rain, lack of maintenance of the bike after riding. Because of this, it will be necessary to carry out repair work to restore the speed switch. If the bike was purchased quite recently, then of course such problems will not arise, but when the factory lubrication ends, then some parts will certainly need to be replaced.

But don’t worry. You yourself can fix the problem with gear shifting and replace the cable NOT making serious efforts. Follow the sequential steps that are described below, and you can easily cope with everything.

Non-standard situations

Complete replacement of the cable is not always necessary. Sometimes an old braid can be used if it remains serviceable. In some cases, the cable and shirt are sold separately. In this case, it is necessary to lubricate the cable, thread it into the braid.

The rest of the procedure is NOT different.

Possible problems and nuances

Repairing the brake does NOT end with the installation of a new cable. Adjustment required. Before tightening the brake cable on your bike, you need to determine how tight it is. To do this, simply lift the rear wheel, spin it and apply the brake. If the handle moves effortlessly for more than half the distance from the initial position to the handlebar, tighten the brake cable. To do this, we pull the cable on the handle itself with a curly bolt.

In cases where the brake freely reaches the steering wheel, you need to adjust the tension near the brakes. For this:

  • Unscrew the fastening screw.
  • We tighten the cable with pliers.
  • We fix the cable with a screw.

The remaining piece of cable is cut.

More about replacement

Cable. consists of a strong metal thread, which, after pressing the lever on the switch, transfers the force to the mechanism for connecting the chain to the wheels. A simple system works quickly and reliably, but it requires optimal tension.

The braid (shirt) is connected to the back feather of the mechanism. It also serves to protect the warp from damage. There are several varieties of shirts. Here is their design depends on the strength of the cable.

Proper care will help extend the life of the element.

  • Trim frayed ends as wear occurs;
  • At least once a season Lubricate the cables;
  • Check the tightness of the caps (after every ride).

But even regular maintenance will NOT prevent wear.

Bicycles use two types of cables for brakes and gear shifting. They differ in knobs at the ends.

Replacing the cable in the derailleur of the bike

Since the replacement of the cable is a repair process, the manufacturer will need a certain tool kit:

  • A set of hex keys (and so that it must contain a 5 mm key)
  • And wire cutters.

Moreover, the procedure for replacing the rear derailleur cable is almost the same as for changing the front derailleur. Only the latter will need to be set to light gear before loosening the cable clamp screw. Well, the designs of these two switches are somewhat different. you also need to pay attention to this. And it is also worth remembering how the cables ran for replacement.

Also, after the procedure for replacing the cable, be sure to adjust the rear (or front) derailleur.

Actually, the replacement is performed step by step, step by step:

  • The rear derailleur is positioned directly opposite the smallest bicycle sprocket. The end of the cable must be cut and the clamping screw loosened. And first you need to remember in which part of the screw (top or bottom) the clamped end of the cable was located. Since this circumstance can have a significant impact on the correctness of gear shifting.
  • With a five-millimeter hexagon (key), it is necessary to loosen the Shifter fasteners, and then remove it. This will open access to the protection cover.
  • The lid lock should be turned counterclockwise to remove.
  • And when the cover is removed, the repairer can see the end of the cable under the large spring. And you need to take a good look at how it is installed there in order to understand how to get it out better.
  • It is necessary to pull the cable out completely, helping the process through the channel of the tension regulator.
  • To help the cable head to free itself, you need to gently push back the spring. And in the same way, it will need to be taken away when installing a new cable.
  • A new cable must be installed in the vacant space. And you need to stretch it through the tunic at the location of the old cable. For convenience, you can guide the cable with the end of a thin screwdriver or even an awl. And at the end, it is better to make sure that the cable still stands exactly as it should.
  • Now you will need to put the Shifter cover in its original position. And fix it with the previously removed retainer, turned it clockwise this time.
  • The shifter is installed in its place immediately before pulling the cable into the sheath.
  • The braided cable is pushed in until the end of the cable appears in the area of ​​the rear derailleur. And there is one Essential nuance here. If the cable does not “does not want to “crawl into the braid, all the time gets stuck and clings to something, it (the cable) will probably have to be changed.
  • Finally, make sure that the rear derailleur is directly opposite the smallest of the bike stars. Attach the cable and fix it on the screw.
  • Cut off the excess cable with pliers, leaving only 3 centimeters, and squeeze its tip.
READ  How to Remove a Sprocket Block on a Bicycle

After the procedure for replacing the gearshift cable on a bicycle, it is necessary to thoroughly test the functionality of the Shifter. And the switch too. This must be done before the bike is fully exploited. It is necessary to test on a special stand. And if this is not done, then the brakes can fail at the most inopportune moment.

Just keep in mind that the bench test and real road conditions can be very different.

Which cable to choose and where to find

There are three types of braids:

  • Twisted. consists of a thin, twisted wire coated with polymer. An inexpensive option with a short service life;
  • SIS. similar to twisted, only instead of a wire for twisting the jacket, strips of metal with a Teflon coating inside are used. The most popular type is wire rope;
  • SIS-SP. consists of a shirt in which the threads are parallel. They are held together by a polymer layer. The braid does NOT stretch during operation. The tension is transmitted directly through the cable. Most reliable, accurate expensive variety.

Summary

Replacing the cable may be necessary at any time, because this element is constantly exposed to stress. On long journeys, you need to take a replacement supply with you. Pre-workout does NOT hurt. The work is simple. Many kids repair their bikes themselves. Anyone can do the replacement following the instructions.

Problems with gear shift faults

In case of breakdowns with a cable shift, it becomes impossible to control the bike, which means that the bike is out of order.

The problems may be as follows:

  • Shirts are broken. it is necessary to check their integrity. This can be detected visually if there is a visible defect, such as when a bicycle falls. The outer sheath will be springy and will NOT transmit cable impulse to the derailleur. Or low-quality copies. There is only one way out. to replace the damaged element;
  • There is accumulated rust under the tip of the braid, the wires come out or everything is tattered;
  • The components (wires) of the cable itself have worn out (it unravels and gets stuck in the braid) and the necessary lubrication is completely absent, as well as the presence of rust and oxide. Everything should be replaced. Priority is given to sanded cables (smooth) for the bike.

Professionals do NOT recommend filling the old cable with grease, since after one or two kilometers of driving on the VELOBIKE sand sticks to the grease and clogs inside, which aggravates the situation. Better to replace worn out components.

How to replace the shift cable on a bicycle

The gearshift system on a bicycle is an important part of the drivetrain that allows you to change the speed of rotation of the torque. Accordingly, the gearshift cable must always be in good condition. If it suddenly breaks down or worn out over time, then it urgently needs to be replaced. This must be done in advance to avoid possible emergencies. How to replace the gearshift cable on a bicycle on your own, what malfunctions and problems arise in the operation of this element, we will consider further in more detail.

  • What is the function of a cable car in a bicycle
  • Cables and shirts wear out
  • Problems with gear shift faults
  • Check for a malfunction
  • Replacing the cable
  • Outcome

Check for a malfunction

In order not to bring the cable and sheath to a running state, when it remains only to replace the malfunction, you should check the technical condition of THESE elements from time to time.

The check for faults is carried out as follows:

  • The transmission is switched to a small sprocket;
  • Inspect the condition of the cable and jacket for faults and looseness;
  • Unscrew the fixing bolt on the front and rear derailleur and remove (expose) the cable from the grooves, check for contamination (and remove it)
  • Move the cable, check the smoothness of its movement in the braid. With good cable movement, the sheath can be lubricated. It is better to choose winter oils for cars, they will not let the components freeze when the bike is operated in sub-zero temperatures down to.25 ° C. When storing the bike in winter, this grease will NOT evaporate, unlike its alcohol-based counterparts;
  • If the elements are serviceable and there is nothing to replace, then go to the switch settings, check the shifters (according to the instructions), if there is dirt, they remove it, add grease.
READ  How To Ride A Bike At Speeds

If a malfunction is detected in the components of this VELOBIKE mechanism, they need to be replaced.

Cables and shirts wear out

If malfunctions begin during the operation of the VELOBIKE rear derailleur, you should immediately check the condition of the cable shift. This is most often the reason. The option either does not fully work or its movement is stuck. The working elements of the bicycle become unusable during use and should be replaced. They are also influenced by the following factors:

  • Dirt, moisture;
  • Precipitation, bad weather;
  • Temperature changes;
  • Improper bike care. all parts must be kept clean and dry, if necessary Lubricated, including aerosols.

Since the cable consists of thin metal wires, over time they inevitably begin to fray and wear out (in the most exploited places), bend and break. The same goes for the braid.

Replacing the cable

If the gearshift cable of the bicycle is worn out, then it can be replaced by yourself, and not by Contacting a technical service. When disassembling, remember the order and position of all elements. To do this, you need hex keys and wire cutters or a knife (for men worn out parts of the cable). The repair of the rear and front cables are similar, but when changing the latter, choose the lowest gear.

The work is carried out in stages:

  • The bike’s rear derailleur is mounted on a small chainring. The ends of the cable are cut, the clamping screw is loosened;
  • The fasteners of the shifters are loosened with keys and removed;
  • Reduce fixation and remove the protection cover;
  • Gently take out the cable, using the tension regulator;
  • Check the braid, if it is in a satisfactory condition, it is left;
  • Pull back the spring and release the cable head. When installing a new element, the spring will also need to be moved;
  • Replace the old worn out cable with a new one, it must be installed in the same positions as the old one. Check the installation;
  • Install back the protection cover by turning clockwise;
  • The cable is pulled into the sheath of the shirt, until the ends of the Ego show up in the rear derailleur of the VELOBIKE. A negative nuance may occur when the ends of the element will NOT come out in the rear derailleur (jam, bend, hook), in which case it will have to be replaced;
  • After installation, check the location of the rear derailleur. it should be in the smallest sprocket. Fix the position of the cable element onto the screw;
  • Excess wire is cut with wire cutters, leaving about 2.5. 3 cm., The tip is squeezed so that they do NOT fray.

Immediately after replacing the elements, be sure to check the operation of the shifters, tension, switching, everything must be in perfect working order.

What is the function of a cable car in a bicycle

Bicycle derailleur cable is a secure metal connection made of steel (stainless or galvanized) between derailleurs and derailleur. The function of the cable is to receive and transfer the necessary efforts to the bicycle mechanism at the right time. After that, the VELOBIKE gear selector starts moving. Therefore, it is very important in case of breakdowns to immediately replace the element with a new one.

The pulling force of this wire increases or decreases depending on which gear the rider selects. The maximum tension is the working state of the element, if for some reason it weakens, it means that it has become unusable and must be replaced.

The cable is positioned and moved inside a flexible tube called a jacket (braid). It is a plastic tube covered with a spiral (or parallel) metal braid with a protective outer layer. The sheath protects the cable from various damage. In case of failure, it should be urgently replaced with a new one.

The brake cable is large and highly durable. He takes on more serious loads when braking the bike, when driving at different speeds and tracks. When you press the VELOBIKE brake adjustment, the element starts to move and regulates the approach of the brake surface with the brake shoe. Be sure to monitor the condition of the brake cable and replace in case of failure.

A bicycle gearshift cable looks like a cable in which:

  • Main part. 7 cores;
  • Spiral twist part. 12 cores.

Spirally wound steel strands make the product more reliable and durable, while maintaining maximum flexibility.

The shirt itself is multi-layered, it has the following layers:

  • Polymeric;
  • Protective steel stranded;
  • Polymer inner and outer.

This element in the cable for braking and shifting a bicycle differs:

  • In the braking mechanism. the protective layer is laid in rings on top of the polymer inner layer (this increases flexibility and resistance to high loads)
  • In the switching scheme. the protection layer is located in the form of an elongated spiral (parallel to the switching cable).

It is important to know that the shirt for cable shifting on the bike will not be able to withstand the load from the brake elements. they are NOT compatible, the elements cannot be replaced with one another.

Outcome

Thus, it is quite possible to identify and troubleshoot a cable on a bicycle. Replacing a damaged element with a new one on your own will also NOT be difficult. It is only necessary to carry out all actions in stages, according to the instructions, and be sure to check the working condition after installation. After that you can go on a trip.

When the cable may need to be replaced

If knocks and vibrations occur during gear shifting, the first step is to inspect the shift cable. Often it is he who is the culprit of the breakdown.

READ  Honda Dio Scooter Won't Start

The main prerequisites for switch failure are dirt and water. Such problems appear when cycling in the rain, lack of maintenance of the bike after riding. Because of this, it will be necessary to carry out repair work to restore the speed switch. If the bike was purchased quite recently, then of course such problems will not arise, but when the factory lubrication ends, then some parts will certainly need to be replaced.

But don’t worry. You yourself can fix the problem with gear shifting and replace the cable NOT making serious efforts. Follow the sequential steps that are described below, and you can easily cope with everything.

Bicycle repair: How to check and replace the shift cable

One of the main features of cyclists in the CIS is that in a good half of the riding season does NOT end at all. At any time of the day and at any time of the year, funny cyclists roam around the cities and forests. In this article we will tell you how to keep track of the standing of your shirts and cable and how to disassemble the speed switch.

How to change the cable

The cable can be replaced at home. You don’t need to use complicated equipment for this. All tools are usually found in every home. The order of work also does NOT cause difficulties for a person with skillful hands.

What is required

To change the transmission cable or brakes you will need:

For beginners, it is advisable to sketch out a plan for the path of the element to be replaced. There are replacement instructions on the Internet, but finding materials for a specific model will take time.

Features of replacing the derailleur cable on a bicycle

A bicycle lover should always be able not only to handle it, but also to carry out competent repairs. And most importantly, all actions can be done independently. This article will focus on the gearshift cable.

The cable is a very strong connecting thread between the speeds and the derailleur. The task of the cable is very simple, to accept human effort and transfer it to the gear shifting mechanism. The tension of the cable can be changed in both directions, respectively, this happens when the gear is already selected. The cable itself is a set of thin metal threads. Which are intertwined and so form a strong connection. The cable is durable and withstands well the stress placed on it. But due to poor quality maintenance and bad weather conditions, breaks appear and the cable must be replaced.

When purchasing a cable, carefully inspect its condition, this stage requires special attention. The best material is steel, which is resistant to corrosion. Better to take in a teflon coating, it is more durable and reliable. The price of a cable may vary, but depending on the manufacturer, they are very cheap. Much cheaper than second bike parts. Please note that you will need additional tools that you may NOT have. Most likely you have a pair of wire cutters or pliers, but most likely you don’t have a 5mm hex. Most of the actions on the bike will require just this. Therefore, the hexagon will become an indispensable thing when self-adjusting or repairing a bicycle.

Possible problems and nuances

Repairing the brake does NOT end with the installation of a new cable. Adjustment required. Before tightening the brake cable on your bike, you need to determine how tight it is. To do this, simply lift the rear wheel, spin it and apply the brake. If the handle moves effortlessly for more than half the distance from the initial position to the handlebar, tighten the brake cable. To do this, we pull the cable on the handle itself with a curly bolt.

In cases where the brake freely reaches the steering wheel, you need to adjust the tension near the brakes. For this:

  • Unscrew the fastening screw.
  • We tighten the cable with pliers.
  • We fix the cable with a screw.

The remaining piece of cable is cut.

When does it change

The cable is changed when the rear derailleur malfunctions begin: voltage imbalance inside the braid, incorrect switching, refusal to move to the desired position. There are several reasons for refusals:

  • Wire and braid wear;
  • Clogging of the gap between them;
  • Gaps and kinks;
  • Erosion of metal elements.

You can try to clean the gap between the wire and the braid. In other cases, it is necessary to replace the gear shift cable.

Summary

Replacing the cable may be necessary at any time, because this element is constantly exposed to stress. On long journeys, you need to take a replacement supply with you. Pre-workout does NOT hurt. The work is simple. Many kids repair their bikes themselves. Anyone can do the replacement following the instructions.

Step by step

Replacing the gear shift cable is performed in several stages:

  • Change the position of the rear derailleur so that it looks at the small bicycle sprockets, cut off the ridge of the rope and unscrew the screw.
  • We unscrew the cover until the end of the cable becomes visible, and pull it out. To release the tip, you will need to pull back the spring.
  • We take a cable prepared for replacement and install it, repeating the trajectory of the old element. An awl or a thin screwdriver is used to adjust the direction.
  • Replacing the cover. We set the switch to its original position if it has moved.
  • We tighten the screw to fix the cable.
  • Cutting the cable, leaving three centimeters, squeezes its end.