What is the difference between disc brakes and regular brakes on a bicycle?

First of all, my personal opinion is that the disc brake is better than the V brake, and it seems that most of the novices who are unfamiliar with sports bikes often think that the disc brake must be better than the V brake, We have heard such words: "There are more than 2000 cars, and there is no disc brake" Such words really make people laugh and cry, look at whether it is a foreign game or a domestic professional competition, if it is a sunny day game, V brake still accounts for the majority, of course, there is a trend of increasing disc brakes, But for most of the casual riding and do not participate in amateur level competitions of the riders, the V brake, especially the better V brake is still enough, of course, for the downhill, like vigorous riding, like cool riders disc brake is still a suitable choice, but a penny for the price, disc brake or V brake itself We still recommend that customers choose from the perspective of use from their own budget to choose more reasonable.

1 Let's look at the difference by design.

Disc brakes are braked by means of a caliper (or caliper) acting on a steel disc fixed to the hub; The V brake is braked by holding the rim through the V brake caliper, relatively speaking, the rim radius is much larger than the disc brake disc radius, so the braking arm of the disc brake is much smaller, so it is theoretically more difficult to lock, and locking is the most basic for the braking requirements of sports bikes, but it is not easier to lock the better.

Weight. It should be noted that generally speaking, low-priced disc brakes are about 800g to 1kg heavier than V brake cars, and the gap between high-end cars is smaller. Listing the weight separately, it can be seen that this is still an important factor that has an impact on riding, and it has to be considered.

2. The difference in working characteristics.

The friction of the V brake is the contact friction between the rubber mixture and the rim (generally speaking, it is the edge of the aluminum alloy car pin process, and the low-grade is the edge of the polishing, the so-called side of the car and the edge of the car, the side of the car is better), the general braking effect is still very strong, unless it continues to go downhill at high speed, continuous braking, for example, when we go down to the yellow horse fork, you touch the rim with your hand, it is also very hot, and the braking force will be weakened at such a temperature. The higher the temperature, the worse the braking effect drops.

Disc brake is a metal disc (generally steel, high-grade also made of aluminum alloy) and disc brake friction between the friction to brake, such a brake is very strong, similar to cars and high-end motorcycles, characterized by not being affected by rain and bad road weather, because the disc brake friction block is metal sinter, so and steel friction, even in rainy days, and mud in the case, the working condition is still good, although the braking force is obvious, but stronger than the V brake rubber and aluminum alloy rim friction. In addition, because the disc brake rotor is made of steel and is generally perforated, the attenuation with the increase of heat during continuous downhill braking is also better than that of V brakes.

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Mountain bikes are mostly disc brakes, and the production and raw materials are more expensive than ordinary brakes.

To put it simply, the brake disc is to squeeze a force on the disc when braking to brake the vehicle Drum brake is to use hydraulic pressure to expand the drum to brake the vehicle. That is, one is the friction on the outside and the other is friction on the inside.

Disc brakes. The main advantage is that it can brake quickly at high speeds.

The heat dissipation effect is better than that of ordinary brakes.

The constancy of braking efficiency is good.

The working principle of the disc brake system is to install a disc that rotates synchronously with the wheels on the hub, and install the caliper on the fork and the frame, and then clamp the disc through the brake block in the caliper to achieve the purpose of braking, which is mainly used in the mountain bike type of off-road route, such a disc brake system has been successfully used in the locomotive for many years in the past, and has become the mainstream of the locomotive braking system.

As for the use of bicycles, it cannot be popularized due to the immaturity of the early disc brake system, the high quality, and the excessive weight.

Classification of disc brake materials.

Organic brake pads are made of mixed fiberglass, etc., without any metal powder. Yes, you can have strong braking forces, but in hot and humid conditions, the force is degraded more drastically than brake pads with metal-based formulations. The advantage is that this kind of brake pad does not conduct heat, so there is no need to worry about the thermal expansion effect of oil, so it is ideal for use in closed hydraulic systems.

Most of the metal brake pads contain copper or iron powder, which is more wear-resistant, and is less afraid of dust and mud affecting the braking force. However, the heat transfer effect is too good, so it is naturally suitable for open hydraulic systems. The disc and the inner and outer brake pads should be parallel and equal in spacing, and they will be carefully corrected during assembly to achieve the ideal actuation mode of synchronization and equal force clamping on both sides.

In this regard, the principle of double-actuating calipers is emphasized. However, some floating calipers unilaterally actuated disc brakes, the disc is relatively close to the fixed, inactive side of the brake pads, and even slightly contacted, the wheels are not static rotation, there is a friction sound, and it is also alleged that the speed of the vehicle is invisibly reduced.

The working principle of bicycle disc brake: the disc brake is a steel disc fixed on the hub through a caliper (or caliper) to achieve the purpose of braking.

The V-brake is braked by holding the rim tightly with the V-brake caliper; Disc brakes are braked by means of a caliper (or caliper) acting on a steel disc fixed to the hub;

Both disc brakes and V-brakes reduce the speed of the vehicle by exerting friction on the object. The biggest difference between the two is that the V brake brakes the bicycle rim through the brake pad, and the disc brake is specially equipped with disc brake pads, which are braked by friction pressure on the brake pads in the brake caliper.

Hello, the bicycle is powered by pedals, the principle of "pedaling and walking", and it must take distance to save labor, and it is also a green and environmentally friendly means of transportation. In addition, bicycles are generally composed of front wheels, spokes, hubs, front forks, front brakes, steel cables, brakes and shift handles, handlebars, vertical bars, frames, front shifters, seat posts, saddles, rear brakes, shelves, flywheels, reflectors, rear wheels, rear shifts, foot braces, valves, rear wheels, chains, wheels, pedals, cranks and other components.

Bicycles are transmission machinery, and its transmission devices include: driving gears (commonly known as wheels), passive gears (commonly known as flywheels), chains and transmissions.

In detail, it is to exert force on the pedal through the human foot, so as to drive the rotation of the sprocket through the crank, and the sprocket drives the rotation of the flywheel through the chain, and the flywheel rotates in turn. Due to the friction between the rear wheels and the ground, the rear wheels do not slide relative to the ground, while the rear wheels roll on the ground.

The answer upstairs was really wordy. And it's been copied somewhere else. Let me answer the first question briefly. Bicycle disc brakes are divided into hydraulic disc brakes and mechanical disc brakes. Presumably, the landlord is asking about the mechanical disc brake. Mechanical disc brakes work in the same way as screw shifts.

Disc brakes rely on disc calipers to hold the brake pads to stop the wheels. There are two friction plates in the caliper, which are on both sides of the disc, and when the brake handle is pinched, the brake line will be pulled to drive the friction plate in the caliper to clamp the brake pads; If it is an oil disc, there is an oil cup in the brake handlebar, and when braking, the piston in the brake handle will squeeze out the oil and push the piston in the caliper to drive the friction pads to clamp the brake pads (similar to the principle of syringe injection).

It's just that there are pliers and pinching pieces of iron. Reduce the speed. It works the same way as a car's clamp brakes.

Advantages of V-brake (butterfly brake):

1. Light weight.

2. Simple structure, easy to install, maintain and repair.

3. Low cost and high cost performance.

Disadvantages of V-brakes:

1. It is easy to slip in rainy days, mud or wading roads.

2. Long-term friction generates heat, and the braking effect is reduced.

3. Excessive force will cause the tire to lock.

4. Improper installation will lead to deformation of the rim.

Disc brake benefits: The braking and heat dissipation effect of disc brake is better than that of V (butterfly) brake! Disadvantages: disc brake ratio V (butterfly).

The brake is a lot heavier, if you use an oil disc, the oil change is 100 yuan every year, and the maintenance cost is also up, and there is oil leakage for some oil discs.

Disc brake is mainly composed of brake disc, piston, oil pipe, etc., the brake disc is connected with the vehicle rotation shaft (the motorcycle is fixed on the wheel), there are two piston friction plates at both ends of the brake disc plane, one end of the piston is the friction plate, and the other end is connected with the oil pipe, when we step on the brake pedal, the brake oil in the oil pipe is compressed and pushes the piston to move, and the friction plate is ejected, and the two friction plates clamp the brake disc to achieve the braking effect.

The disc brake effect is good, but the disadvantage is that the structure is complex, the cost is high, and it is very easy to "lock" the wheel to stop rotating instantly, which causes the vehicle to slide or even roll over the accident. At present, cars use the "ABS" system to make up for this shortcoming of disc brakes.

Disc brake, is disc brake, by a brake disc connected to the wheel and the brake caliper on the edge of the disc When braking, the high-pressure brake oil pushes the brake pad to clamp the brake disc to produce a braking effect.

Oil brake is a brake control system that brakes through hydraulic disc brake and hydraulic transmission braking.

Features of both brakes:

1. Disc brake, sensitive effect, good heat dissipation, no need to adjust the brake clearance, easy maintenance.

2. The hydraulic disc brake is characterized by good braking effect, good feel and sensitivity. The force on the hand is smoother and less labor-saving than the pull wire disc kill. The weight is also relatively large.

Hello Hunger Tong seeps, it's not the same. Bicycle double brake rotten ridge refers to the front and rear wheels with two brakes, generally refers to the front wheel of the V-brake and the rear wheel of the disc brake, their role is different. V-brake is a kind of mechanical brake, by pulling the brake lever, so that the brake pads grip the tires on the wheels, so as to achieve the effect of braking; The disc brake is a kind of hydraulic brake, through the pressure of hydraulic oil, so that the brake pads grip the tires on the wheels, so as to achieve the effect of braking.

Summary. Hello dear! Bicycle double brakes and disc brakes are not the same.

Here's why: Double braking means that both the front and rear brakes are installed on the bike, and the braking effect is achieved by braking the front and rear wheels at the same time. Whereas, a disc brake is a braking system that uses a rotating metal disc and a brake caliper to achieve the brakes.

Disc brakes have better braking performance than traditional V brakes and roller brakes, because disc brakes can provide more braking force and better heat dissipation, which is suitable for high-speed riding and steep road sections. Dual brakes can use disc brakes as front brakes, or other types of brakes such as V brakes or roller brakes. So, dual brakes and disc brakes are different, disc brakes can be part of a dual braking system.

Hello dear! Self-propelled or booked car double brakes and disc brakes are not the same. Here's why:

Double braking refers to the installation of front wheel brakes and rear consumer wheel brakes on the bicycle at the same time, and the braking effect is achieved by braking the front and rear wheels at the same time. Whereas, a disc brake is a braking system that uses a rotating metal disc and a brake caliper to achieve the brakes. Disc brakes have better braking performance than traditional V brakes and roller brakes, because disc brakes can provide more braking force and better heat dissipation, which is suitable for high-speed riding and steep road sections.

Dual brakes can use disc brakes as front brakes, or other types of brakes such as V brakes or roller brakes. So, dual brakes are different from disc brakes, and disc brakes can be part of the double braking system to take the fluid.

Which is better? Dear, of course double brakes are better.