How the brakes work on a bicycle

Mechanical

  • Provides much more powerful braking than rim.
  • Allows you to control the braking force.
  • They work in any weather. Dust, dirt and moisture have virtually no effect on braking performance.
  • Do not wear out the rim.
  • Does not interfere with the use of wide tires.
  • Works effectively on a curved rim.
  • Long serve.
  • Do not need special maintenance.
  • Rotor aligns much easier than hydraulic brakes.
  • Ropes do not need special operation, unlike hydraulic lines.
  • Cannot be repaired in the field without special tools.
  • Due to the variety of models and modifications, the search for spare parts is a little difficult.
  • During transportation of a disassembled bicycle, there is a high probability of curvature of the rotor due to any mechanical impact.
  • Sometimes they interfere with the attachment of the bike rack.
  • Are heavy on rim brakes.
  • expensive than rim models.

V-brake brakes

brakes, work, bicycle

Since this type of rim brakes is the most common on the modern market, let’s dwell on its advantages and disadvantages noted by users.

  • Simple and highly efficient design that provides good braking power.
  • Lightweight compared to drum and disc brakes.
  • Low cost.
  • Durability of the mechanism.
  • Reduced efficiency when moisture and dirt get on the rims.
  • Acceleration of rim wear in case of contamination.
  • Inability to use wide tires.
  • If the wheel is uneven (has eights), this type of brake is difficult to set up for good performance.

Hydraulic

Disc hydraulic bicycle brakes have the same benefits as mechanical ones, plus a few of their own:

  • The most powerful braking force of all types.
  • Excellent control of braking force.
  • Work in all weather conditions.
  • Easy movement of the brake lever.
  • Hydraulic line repair is quite problematic.
  • If the rotor is bent, it is difficult to align it.
  • Highest price relative to other species.

In addition, hydraulic disc brakes have the same disadvantages as mechanical ones.

Cantilever brakes

The mechanism consists of two levers, each of which has brake pads. The levers are attached to the pivots on the fork. With the help of two rods, the cable moves the levers that press the pads. The device is reliable and simple, but it is less and less common on modern bicycles. Other types, with a more efficient mechanism, are gradually replacing it.

Hydraulic rim brakes

Unlike the previous two types, the design of such brakes does not include rotating levers on which the pads are attached, and cables that drive these levers. The principle of operation is slightly different here. The brake lever located on the steering wheel contains a fluid cylinder. When pressed, it transmits pressure through special tubes to two cylinders mounted on the fork. These cylinders push the pads perpendicular to the rim, causing friction and braking. Bicycle brakes of this type are very effective, so they are used in trials. Due to their heavy weight, difficulty in maintenance, poor modulation (the ability to dose the braking force with the handle) and repairability in difficult weather conditions, rim hydraulic brakes have not taken root in other types of cycling.

Brake types

The bicycle market is growing and developing rapidly. Every year more and more new technologies, solutions and spare parts appear. Therefore, some details are outdated and cannot withstand the competition. Today we will discuss those types of bicycle brake systems that are actively used in our time.

So, bicycle brakes are of the following types:

  • Drum.
  • Rim (in turn are divided into: cantilever, tick-borne, hydraulic, and V-break).
  • Disk (there are: mechanical and hydraulic).

According to the popular classification, the first type is called a pedal brake, and the rest are called hand brakes. Now we will analyze each of the types separately.

Disc Bicycle Brakes

So, a disc brake consists of a rotor (disc) and a caliper (brake machine). The rotors are available in diameters from 140 to 220 mm. The higher this figure, the larger the lever arm and the more efficiently the brake works. The caliper is mounted on a frame or bushing. Pads are installed inside it, which are driven by special pistons. Bicycle disc brake pads are made from organic materials or metal filings. The first option allows for smooth braking and quickly grinds in, and the second grinds in for a long time and wears out longer.

Bicycle brakes

Brakes for a bicycle, like for any other vehicle, are an indispensable element necessary to control the bicycle and ensure safety. The following types are distinguished:

Drum brakes. 2. Rim brakes. 3. Disc brakes.

Which type of brakes should you choose? To answer this question, it is worth understanding the features of each type of brake.

Disc brakes device

A disc brake consists of a brake disc (rotor) attached to the wheel hub, and a brake machine (caliper), inside which the brake pads are located. Disc rotors come in several sizes: 140, 160, 180, 185, 203 and 220 mm. The larger the rotor diameter, the more efficiently the brake works, as the arm of the brake force lever increases.

The caliper (brake machine) is mounted on the fork or on the frame. Inside the caliper there are two brake pads that are pressed against the rotor by one or more pistons.

Brake pads can be filled with metal filings or organic material. Metal-filled pads last for a long time and are more resistant to wear. Organic pads are softer, wear in quickly and provide smoother braking.

V-brake brakes

V-brakes are applied in the same way as cantilever brakes. The brake cable is routed from the side to the top of the brake arm. The brake lever compresses both parts of the brake with cartridge brake pads. This system of parallel pad pressing allows for efficient braking. In addition, the cartridge brake pads can be easily changed using a conventional hex wrench. At the moment, this type of brake is the most common. It is used on almost all types of bicycles. For instance:

Since V-brakes are the most common type of rim brakes, it is worth considering their advantages and disadvantages separately.

Rim brakes

This is the most popular type of brake today. Their principle of operation is as follows: when a force is applied, which is transmitted through a cable to the brake levers, the brake pads on the brake levers fit tightly to the wheel rim, which ensures braking. Rim brakes are available in cantilever, caliper and V-brakes.

Drum brakes

A drum brake (otherwise called a foot brake) is located in the rear hub of the bicycle and has brake pads inside. The braking process is initiated when the carriage rotates against the movement. As a result, the brake pads are pulled apart and pressed against the drum. Friction arises between the pads and the drum, due to which braking occurs. Drum brakes are commonly found on children’s bicycles and inexpensive city bikes for adults.

Disc mechanical brakes

Mechanical disc brakes, as a rule, are installed on mountain bikes (Forward Next 27.5 2.0 disc (2020), Forward Iris 26 2.0 disc (2020), etc.) and touring bicycles (Forward Yukon 2.0 disc), less often on city bikes (to For example, Forward Tracer 26 2.0 disc (2020)).

Cantilever brakes

Their mechanism consists of two levers with brake pads attached to the pivots on the fork. With the help of a pair of rods, the cable moves the levers, after which braking occurs. This mechanism is simple and reliable, but it is less and less common. It is superseded by other other types of brakes with more effective stopping power.

Advantages and disadvantages

  • system reliability when properly configured;
  • braking accuracy;
  • high response speed of the mechanism when the brake lever is pressed;
  • minimal risk of wire breakage;
  • endurance when moving;
  • the ability to manipulate the brakes with high precision.
  • high cost of the hydraulic system;
  • subtleties of service;
  • weight;
  • vulnerability of details;
  • the possibility of leakage;
  • the inability to install a standard trunk;
  • inconvenience when removing and putting on wheels.
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Maintenance and repair

Repair work on the bike must begin with diagnostics, followed by:

  • dismantling the problem wheel;
  • cleaning the brake machine;
  • open the working pistons;
  • eliminate malfunctions;
  • inspect the piston system for leaks;
  • replace pistons and O-rings (if necessary);
  • inspect the entire hydraulic cutter line for damage.

When repairing the hydraulic system, you need to remember the following precautions:

  • avoid contact of liquid with skin and eyes, as toxicity of the substance, causes severe poisoning and can be harmful to health.

Principle of operation

The rider, pressing the brake handle, builds up pressure in the hydraulic line, which displaces the brake fluid from the master cylinder. Then it hits the slave cylinder.

Under the influence of pressure, the pistons bring the brake pads together, and their friction against the rotating shaft leads to an instant blocking of the wheels.

CLIM 8 CLARK`S

Reliable, budget model, adapted to various weather conditions.

  • Hydraulic hoses are reinforced with para-aramid fiber and metal;
  • six-cylinder caliper design;
  • increased weight;
  • the complexity of installing the system (require additional adjustment);
  • handle design.

Hydraulic brakes on a bicycle: device, types, maintenance and repair

Modern bicycles can be equipped with various braking systems. Each has its own advantages and disadvantages. Cycling enthusiasts have to make choices that depend on many factors.

Of the existing types, hydraulic braking systems have become very popular in recent years. Hydra bicycles are in trend now and are in demand among fans to ride with the breeze.

Symptoms of a hydraulic brake malfunction

During the time in operation, the hydraulic system is exposed to various factors, which inevitably leads to its malfunction.

Spontaneous involuntary braking of a vehicle indicates a specific problem.

Common reasons include:

  • water ingress into the hydraulic system;
  • airing;
  • falling and hitting a bike;
  • low level of braking;
  • disconnection of the hydraulic circuit;
  • jamming of the working piston;
  • reduced elasticity of the brake lever.

Shimano deore

The world famous Japanese company offers a new model of Shimano Deore hydraulic braking system, which deservedly leads in world ratings:

  • toothed or threaded rotor mount;
  • a set of two types of pads;
  • handles pleasant to the touch;
  • stable functioning of the main brake cylinder;
  • obedience to the system.

How the bike works. Brake system.

Mechanical type brakes are easier to repair, usually cheaper and definitely lighter. Such a braking system consists of separate elements: handles, cables and shirts, and the braking mechanism itself. In this case, the replacement of one of the elements takes place without the participation of the rest.

In this type of brake, the brake lever is connected to the caliper using a steel cable. This design has several advantages. simplicity of the device, noticeable low cost, good reliability and maintainability (especially in “street” conditions).

This is especially important when the bike will be used on long cycling rides in uninhabited areas. The disadvantage of a mechanical brake is the friction of the steel cable against the jacket, the friction of moving parts in the caliper itself, due to which the braking effect is somewhat reduced, relative to the hydraulic type of brake.

Inexpensive mechanical brakes are designed in which only one brake pad is connected to the brake lever. At the same time, the second block remains motionless. When using such a brake, when the stationary pad wears out, the brake disc is deformed at the moment of braking, and the braking efficiency is reduced.

In more advanced models, which means more expensive, both pads are made mobile.

Mechanical disc brake. a cheaper alternative to a hydraulic brake, optimized for its simplicity and maintainability.

The hydraulic brake provides maximum contact pressure. The cost is much more expensive. All components, from the brake levers to the brake itself, are difficult to separate. Replacing one of the components is complicated by the fact that if the brake fluid leaks out during repair, it will have to be refilled. over, you may have to “bleed” the entire brake system to remove the formed air bubbles.

In this type of brake, the brake lever is connected to the caliper by a hydraulic line filled with brake fluid or special mineral oil. When the brake lever is pressed, the fluid drives the brake cylinder, which in turn pushes the pad. Since the fluid is practically incompressible, the effectiveness of such a brake is very high. The hydraulic type provides a very strong and sharp compression, which is very important for sharp wheel locking, for example, for those who perform extreme stunts on a bicycle pedal. But to improve the quality of brake control (modulation), more complex brake levers with a smooth, step-by-step stroke are used.

If the brake is equipped with an expansion tank, then the difference in air temperature does not affect its operation. But this brake has a peculiarity. It is not recommended to turn the bike upside down for a long time, more than a few hours, as air bubbles from the expansion tank can get into the hydraulic line, which means that the brake efficiency will drop sharply. Most often, modern disc brakes have a closed system, in which there is nothing threatening the bicycle overturning.

The hydraulic system has two disadvantages:

  • – much higher price compared to other types of braking systems.
  • – servicing a hydraulic brake has many subtleties. Let me remind you that if air gets into the hydraulic line, then the brake must be “pumped”. This procedure is not very difficult, but it requires some experience.
  • – yet, the brake fluid must be periodically changed, depending on the operating conditions. It is important to clearly know what kind of liquid was used. Some braking systems run on mineral oils, for example, Shimano and Tektro, and some. on automotive brake fluids DOT 4 or DOT 5.1, e.g. Hayes, Avid, Formula.

Foot brake (foot brake). It is used only on very inexpensive and / or children’s bicycles. Doesn’t require any special care. The disadvantage of the pedal brake is the impossibility of braking when the feet slip. Under heavy braking, the braking foot may burst and you will be left without a brake.

This type of brake is applied by pedaling in the opposite direction (backward). Therefore, it is only installed on the rear wheel of the bicycle. Such a brake is also called a ratchet or a coaster brake. This is due to the fact that it combines the function of a brake and a ratchet. “ratchet”, or freewheel mechanism

Rim (v-brake). On both sides of the rim there are two long levers, on the first one there is a stop for the cable jacket, and on the second. anchor bolt. As a result, the cable runs in the upper horizontal position from one lever to the other. This type of brake offers greater strength gains than other braking systems. Therefore, special brake levers with a reduced amount of applied force are used here. On some v-brakes, a special “parallelogram” brake pad mount is mounted, which allows the pads to maintain the desired angle of inclination when approaching the wheel rim.

Disc brake system. In a disc brake system, the braking process is carried out by squeezing the brake discs. “rotor”.

The brake system in its principle of operation is similar to an automobile disc brake, which consists of a disc attached to the hub and a caliper (caliper) attached to the frame or fork, which compresses the disc. The main advantage of a disc brake is the so-called modulation. Such a property, due to which the braking process is obtained as controlled as possible. This can be felt by pressing the brake lever, you have a feeling of braking force, it is easier to control it without risking to immediately block the wheel. Also, among the advantages, we note the following:

  • – the disc brake is not afraid of dirt and rain;
  • – the disc brake will not be hindered by movement if you bend the wheel (“figure eight” or “egg”);
  • – disc brake, thanks to its design, good heat dissipation.
  • – disc brakes do not wear out the wheel rim, and their pads have a much greater resource, because made of pressed metal.

The first rim brake was a single pivot brake with a single pivot brake, located on the crown of the fork or the bridge of the rear stays. Further development of the design led to the emergence of brakes with two joints spaced apart on the sides (double pivot brake). The caliper brake is now available on road bikes, and as an additional brake on the city, foldable and low-cost off-road bike. There is a modification with both a central brake cable supply and a side supply.

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Gradually outgoing type of braking system. Used extensively on mountain bikes in the past. but is now widely replaced by other types of brakes. But in the early days of mountain biking, they had little alternative. Cantilever brakes are arranged simply: two levers with brake pads installed on them are movably fixed on special pins (“pins” are available on almost any frame and fork). A brake cable from above activates the brake levers by means of two rods.

The main advantages of the cantilever brake are their simplicity and ease of maintenance. A noticeable plus is their sufficient dirt resistance. since the fully “turned out” design is less prone to clogging with dirt, snow and dust than other rim braking systems. Another advantage of cantilever brakes is. their cheapness. Today they are among the cheapest braking systems. But, unfortunately, parameters such as modulation, strength and braking efficiency are still unsatisfactory. Perhaps for a walking bike this will not be such a critical moment, but for sports use it is already a very significant disadvantage.

Disc brakes on a bicycle

Disc brakes are gaining more and more popularity day by day. They can be front and rear, mechanical and hydraulic. The way the disc brake works makes this type of construction very popular.

A steel disc, or rotor, is placed on the hub, usually on the left side. The caliper, a device that compresses the rotor with brake pads, is also attached to the hub. Braking force is transmitted using a cable or hydraulic line coming from the brake lever on the steering wheel.

Mechanical disc brakes. This design uses the same cable as, for example, V-breaks. The simplicity of the engineering solution explains the pros and cons of this bicycle front brake circuit.

  • frequent stretching and jamming of the cable;
  • a large number of rubbing parts, and, as a result, the need for frequent replacement of components;
  • modulation level is worse than in hydraulics.
  • the possibility of repairing on the knee due to the simplicity of the design of bicycle disc brakes;
  • relatively low price.

Hybrid disc brakes. Their working scheme combines the principles of mechanics and hydraulics. In more detail, the braking force is transmitted to the hydraulic part of the brake using a cable.

This type is not very common: it is considered that its advantages in relation to pure mechanics are not great enough compared to the difference in price.

Hydraulic disc brakes. The disc brake consists of a means of transmitting the braking force and the brake itself. The braking force is transmitted through a special high-pressure tube. Pressing the handle forces the brake master cylinder to press on the fluid in the tube, from which pressure is transferred to the brake cylinder in the caliper.

  • high leakage potential;
  • high price;
  • the complexity of repair and customization;
  • heavy weight.
  • high efficiency when properly configured;
  • practically unchanged braking force transmission, i.e. excellent modulation.

The way hydraulic brakes work on a bike makes them the best choice for high-end mountain bikes.

Bicycle rim brakes

This group got its name from the word rim: it is he who is compressed by the brake pads, slowing down the movement. The brakes are activated by a cable from the brake lever. Varieties:

Tick-borne brakes, or crabs. It is widely believed that such a device for the brake system of a bicycle will soon lose its last fans. But so far, crabs are often installed on road and simple mountain bikes. The scheme of operation of such a bicycle brake system is very simple: the pads are attached to arcuate levers and, when you press the handle, squeeze the wheel rim, slowing down the speed of its rotation.

Taking a look at the list of advantages and disadvantages of caliper brakes, it’s easy to see why they are losing popularity so quickly.

  • questionable braking efficiency;
  • constant distortions;
  • friction of the pads on the rim without pressing the brake lever;
  • the inability to integrate them with most suspension forks;
  • rapid pollution;
  • high price with such unflattering characteristics.
  • simplicity of design;
  • ease of maintenance.

Summing up, we can say that the very design of this bicycle handbrake is the cause of most of the problems.

Cantilever brakes. This system of bicycle brakes is quite rare nowadays. Cantilever brakes. another scheme going down in history.

The principle of their work can be described as follows: a pair of levers with brake pads are fixed with special fasteners to the fork. By pressing the brake lever, these levers are attracted to each other, compressing the rim with the brake pads.

  • mediocre braking performance;
  • bad modulation.
  • ease of maintenance;
  • little weight;
  • do not clog up with dirt.

Cantilever brakes are now used on children’s bicycles and low-cost models. This model is also very popular among cyclocross fans.

V-break brakes, or V-breaks. These are the most common type of rim brakes today. The design of this front brake on a bicycle is very similar to a cantilever brake. The fundamental difference lies in the way the cable is supplied. This seemingly small difference leads to huge differences in performance.

  • the need for professional customization;
  • the functionality of the system must be checked before each ride.
  • structural reliability;
  • acceptable braking efficiency and modulation.

Hydraulic rim brakes. How hydraulic brakes work on a bicycle is easier to understand for motorsport fans because the same hydraulic principles apply here:

  • The braking force is generated in the master cylinder.
  • When the handle is pressed, pressure is transmitted through the tube to the brake cylinders attached to the fork.
  • Under the influence of pressure, the cylinders push out the brake pads, forcing them to compress the rim.
  • heavy weight;
  • complexity of maintenance (impossibility of repair by a non-professional);
  • poor maintainability outside the workshop;
  • mediocre modulation.

Of the advantages. very high braking efficiency.

Such a specific balance of advantages and disadvantages led to the fact that such a device for bicycle brakes is in demand only in a trial.

Bicycle brakes: slow down expertly

Home Bicycle device Bicycle brake device: slowing down expertly

The brakes on any bike are designed to stop the bike or to regulate the speed of movement. That is why the braking system is evaluated primarily according to two parameters:

  • modulation. the ability to adjust the speed, slow down;
  • braking efficiency. the ability to abruptly stop movement.

Bicycle brake mechanisms are divided into:

  • rim;
  • disk;
  • drum (pedal);
  • roller;
  • striving.

Only the first 3 species are widespread. All bicycle braking systems can be divided depending on which wheel they stop rotation, that is, into front and rear.

Front brakes are usually hand brakes and are activated by pressing a handle on the steering wheel. Rear brakes are most often pedaled backwards and are therefore called foot brakes.

Pros and cons of rim brake systems in general:

  • braking forces are applied to the rim, which reduces the load on the spokes and hub;
  • less heat than disc brakes;
  • comparative ease of customization;
  • small mass;
  • relatively low price.
  • an instant decrease in efficiency when snow, water, dirt, oil gets on the rim, but special notches for removing moisture partly solve this problem;
  • dependence of braking efficiency on wheel geometry;
  • the need for frequent replacement of pads;
  • impossibility of integration with many frames and forks;
  • rapid wear of the rim due to friction on the pads.

V-breaks can shorten frame life, and hydraulic rim brakes can simply rip out a feather or mount when braking hard. Depending on how the brakes are arranged on a particular bike, the pads can be made of different types of rubber, and their mount is made of metal.

Bicycle handbrake device: everything is in your hands

There are several schemes for hand brakes used on bicycles. Let’s talk about each type in more detail.

Bicycle rear brake design

Bicycle foot brakes are called drum brakes, and their device is quite simple. In theory, they could be hand brakes, but hand drum brakes are rare these days.

The drum brake mechanism is located in the rear wheel hub. When braking, the pads expand and stop the rotation of the wheel. As you can see, both the circuit and the principle of operation of this rear bicycle brake are elementary.

  • ease of maintenance;
  • the foot brake device protects the bike from dirt and dust;
  • good modulation and braking performance.
  • cannot be repaired in the field;
  • small margin of safety when used in harsh conditions.

Summing up, we can safely say that there is simply no definite answer to the question of which brake device on a bicycle is better. Which suits you best, foot (rear) brake or disc circuit, largely depends on habit, conditions of use and subtleties of setting.

READ  How to put a chain on a sports bike

Only experience will help you find your optimal solution, and there can be only one universal advice: regularly check the condition of your bike’s brakes. Don’t believe cowards came up with the brakes. Their creators are smart, responsible, careful people who plan to live happily ever after.

Bicycle brakes: slow down expertly

Home Bicycle device Bicycle brake device: slowing down expertly

The brakes on any bike are designed to stop the bike or to regulate the speed of movement. That is why the braking system is evaluated primarily according to two parameters:

  • modulation. the ability to adjust the speed, slow down;
  • braking efficiency. the ability to abruptly stop movement.

Bicycle brake mechanisms are divided into:

  • rim;
  • disk;
  • drum (pedal);
  • roller;
  • striving.

Only the first 3 species are widespread. All bicycle braking systems can be divided depending on which wheel they stop rotation, that is, into front and rear.

Front brakes are usually hand brakes and are activated by pressing a handle on the steering wheel. Rear brakes are most often pedaled backwards and are therefore called foot brakes.

Bicycle rim brakes

This group got its name from the word rim: it is he who is compressed by the brake pads, slowing down the movement. The brakes are activated by a cable from the brake lever. Varieties:

Tick-borne brakes, or crabs. It is widely believed that such a device for the brake system of a bicycle will soon lose its last fans. But so far, crabs are often installed on road and simple mountain bikes. The scheme of operation of such a bicycle brake system is very simple: the pads are attached to arcuate levers and, when you press the handle, squeeze the wheel rim, slowing down the speed of its rotation.

Taking a look at the list of advantages and disadvantages of caliper brakes, it’s easy to see why they are losing popularity so quickly.

  • questionable braking efficiency;
  • constant distortions;
  • friction of the pads on the rim without pressing the brake lever;
  • the inability to integrate them with most suspension forks;
  • rapid pollution;
  • high price with such unflattering characteristics.
  • simplicity of design;
  • ease of maintenance.

Summing up, we can say that the very design of this bicycle handbrake is the cause of most of the problems.

Cantilever brakes. This system of bicycle brakes is quite rare nowadays. Cantilever brakes. another scheme going down in history.

The principle of their work can be described as follows: a pair of levers with brake pads are fixed with special fasteners to the fork. By pressing the brake lever, these levers are attracted to each other, compressing the rim with the brake pads.

  • mediocre braking performance;
  • bad modulation.
  • ease of maintenance;
  • little weight;
  • do not clog up with dirt.

Cantilever brakes are now used on children’s bicycles and low-cost models. This model is also very popular among cyclocross fans.

V-break brakes, or V-breaks. These are the most common type of rim brakes today. The design of this front brake on a bicycle is very similar to a cantilever brake. The fundamental difference lies in the way the cable is supplied. This seemingly small difference leads to huge differences in performance.

  • the need for professional customization;
  • the functionality of the system must be checked before each ride.
  • structural reliability;
  • acceptable braking efficiency and modulation.

Hydraulic rim brakes. How hydraulic brakes work on a bicycle is easier to understand for motorsport fans because the same hydraulic principles apply here:

  • The braking force is generated in the master cylinder.
  • When the handle is pressed, pressure is transmitted through the tube to the brake cylinders attached to the fork.
  • Under the influence of pressure, the cylinders push out the brake pads, forcing them to compress the rim.
  • heavy weight;
  • complexity of maintenance (impossibility of repair by a non-professional);
  • poor maintainability outside the workshop;
  • mediocre modulation.

Of the advantages. very high braking efficiency.

Such a specific balance of advantages and disadvantages led to the fact that such a device for bicycle brakes is in demand only in a trial.

Bicycle handbrake device: everything is in your hands

There are several schemes for hand brakes used on bicycles. Let’s talk about each type in more detail.

Pros and cons of rim brake systems in general:

  • braking forces are applied to the rim, which reduces the load on the spokes and hub;
  • less heat than disc brakes;
  • comparative ease of customization;
  • small mass;
  • relatively low price.
  • an instant decrease in efficiency when snow, water, dirt, oil gets on the rim, but special notches for removing moisture partly solve this problem;
  • dependence of braking efficiency on wheel geometry;
  • the need for frequent replacement of pads;
  • impossibility of integration with many frames and forks;
  • rapid wear of the rim due to friction on the pads.

V-breaks can shorten frame life, and hydraulic rim brakes can simply rip out a feather or mount when braking hard. Depending on how the brakes are arranged on a particular bike, the pads can be made of different types of rubber, and their mount is made of metal.

How The Hydraulic Brakes Work On A Bike. Not Only For Newbies.

Disc brakes on a bicycle

Disc brakes are gaining more and more popularity day by day. They can be front and rear, mechanical and hydraulic. The way the disc brake works makes this type of construction very popular.

A steel disc, or rotor, is placed on the hub, usually on the left side. The caliper, a device that compresses the rotor with brake pads, is also attached to the hub. Braking force is transmitted using a cable or hydraulic line coming from the brake lever on the steering wheel.

Mechanical disc brakes. This design uses the same cable as, for example, V-breaks. The simplicity of the engineering solution explains the pros and cons of this bicycle front brake circuit.

  • frequent stretching and jamming of the cable;
  • a large number of rubbing parts, and, as a result, the need for frequent replacement of components;
  • modulation level is worse than in hydraulics.
  • the possibility of repairing on the knee due to the simplicity of the design of bicycle disc brakes;
  • relatively low price.

Hybrid disc brakes. Their working scheme combines the principles of mechanics and hydraulics. In more detail, the braking force is transmitted to the hydraulic part of the brake using a cable.

How Do Disc Brakes Actually Work?

This type is not very common: it is considered that its advantages in relation to pure mechanics are not great enough compared to the difference in price.

Hydraulic disc brakes. The disc brake consists of a means of transmitting the braking force and the brake itself. The braking force is transmitted through a special high-pressure tube. Pressing the handle forces the brake master cylinder to press on the fluid in the tube, from which pressure is transferred to the brake cylinder in the caliper.

  • high leakage potential;
  • high price;
  • the complexity of repair and customization;
  • heavy weight.
  • high efficiency when properly configured;
  • practically unchanged braking force transmission, i.e. excellent modulation.

The way hydraulic brakes work on a bike makes them the best choice for high-end mountain bikes.

Bicycle rear brake design

Bicycle foot brakes are called drum brakes, and their device is quite simple. In theory, they could be hand brakes, but hand drum brakes are rare these days.

The drum brake mechanism is located in the rear wheel hub. When braking, the pads expand and stop the rotation of the wheel. As you can see, both the circuit and the principle of operation of this rear bicycle brake are elementary.

  • ease of maintenance;
  • the foot brake device protects the bike from dirt and dust;
  • good modulation and braking performance.
  • cannot be repaired in the field;
  • small margin of safety when used in harsh conditions.

Summing up, we can safely say that there is simply no definite answer to the question of which brake device on a bicycle is better. Which suits you best, foot (rear) brake or disc circuit, largely depends on habit, conditions of use and subtleties of setting.

Only experience will help you find your optimal solution, and there can be only one universal advice: regularly check the condition of your bike’s brakes. Don’t believe cowards came up with the brakes. Their creators are smart, responsible, careful people who plan to live happily ever after.