Why can the oil disc brake be double clamped but the line disc brake cannot?

Both sides and one side are made by disc brakes.

The structure of the oil dish.

The clamp is sealed, so that the piston on both sides of the piece is the same, and the force can be applied evenly, and it is logical to make a bilateral action.

The structure of the line disc is only to rely on the brake line to pull the brake guide arm, so as to push the piston of the disc brake, it is difficult for the line disc to do bilateral action, the market has not heard of double action, BB7 is not, but it can be adjusted bilaterally to order the position of the piece.

The braking method of the oil disc and the wire disc also determines that the braking strength and feel of the oil disc are destined to be better than the line disc, and the design of the advanced oil disc is better, and the braking strength, adjustment range and flexibility are better.

Giant now has mechanical double-actuated feel like oil disc, super good braking strength, easy maintenance, patented technology.

The question stem is unclear and cannot be answered.

The hydraulic disc brakes well. Oil dish. Basically no maintenance, a year of riding feel and banquet braking effect will not change much, most of the maintenance is to change the order every year, the oil change cycle can be longer.

If you are riding in a harsh environment, the reliability of the oil disc is far greater than that of the line disc, because the structure of the oil disc is closed, the wind cannot blow into the rain, and the line pipe of the wire disc may enter the water and sand, and the feel is really plummeting.

Because of the joint influence of brake handles, calipers, brake wires, and wire pipes, the feel of the wire disc is really very dependent on the technician tuning, I have tried my brother's car in the school car association before, BB5 clamp + FR5 brake handle is as smooth as silky, but I always feel like pinching, and the oil disc at a price level is filled with good oil, and the feel is not bad to take it.

For high-load use, there is no need to choose, because only the oil disc supports high-load use. The high load here is not how far you ride in a day and how many times you pinch how strongly, but the continuous braking at high speed over long distances, such as 20 kilometers down 2000 meters above sea level plus the strength of the whole process with the brake, it is not that the equipment can't hold it, it's that your fingers can't hold it first, only the socks have an oil disc that can provide enough braking force in the case of less hand output.

Hydraulic oilDisc brakesThe method of adjusting the tightness is as follows:

1. Use hexagon sockets to twist the two socket screws of the Panasonic pump.

It can be loosened, or it can be completely twisted out. Counterclockwise is unscrewed, clockwise.

It is tightening. 2. Twist out the positioning screws, and use the T-type tool to twist out the two screws for the positioning of the lower pump.

3. Take out the lower pump, take out the lower pump, and use the hexagon to twist out the two hexagon screws that were loosened just now.

4. Take the sail and raise the disc brake pads, take out the screws first, and then take out the disc brake pads.

5. Flatten the pistons, flatten the two pistons of the lower pump with tools, and spray them with rust remover if they are rusty.

6. Install the new disc brake pad, install the new disc brake virtual car macro piece, go to the two screws, and tighten it with the inner hexagon.

7. Tighten the positioning screws of the lower pump, install the lower pump into the brake disc, and tighten the two positioning screws.

There are adjusting screws at the brake handle and brake at the cable head, just adjust the free gap a little less.

1. The adjustment method of all disc brakes is the same, first loosen the two screws on the brake, do not unscrew it, and loosen it slightly so that the brake can shake left and right.

2. Put your left hand on the handlebar brake and hold up the wheel.

3. Turn the wheel vigorously with your right hand, pinch the brake with your left hand during rotation, and pinch it tightly without letting go.

4. Tighten the screw you just loosened with your right hand, but not too tightly.

Principle. The working principle of the disc brake system is to install a disc that rotates synchronously with the wheels on the hub, and install calipers on the fork and 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.

Due to the immaturity of the early disc brake system, the ** is too high, the weight is too heavy and other problems and can not be popularized. After years of improvement in material, weight, reliability and other aspects, more and more companies have invested in research and development, in addition to the more and more common use, it has become the standard equipment of high-end cars, and it is believed that it may become the standard equipment of most bicycles in the future.

The above content reference: Encyclopedia - disc brake.

The difference between the oil disc brake and the line disc brake is that the incoming method is different, the total weight is different, the safety factor is different, and the price is different. Oil brake is a kind of brake control system, through hydraulic disc brake, hydraulic transmission braking system. The wire disc uses the brake cable to transfer energy.

Generally speaking, oil disc brakes require less force and are very easy because the piston of the brake lever exceeds the piston of the caliper, causing the energy to increase exponentially. Oil disc brakes are commonly used in vehicles, bicycles and electric vehicles. Mountain bike brakes are mainly divided into V brakes and disc brakes.

Among them, disc brakes are divided into cable disc brakes and hydraulic disc brakes. The characteristics of the hydraulic disc brake are that the braking system has a very good effect, good touch and dexterity. The strength in the hand is very tight, and the disc brake is more silky and effortless.

Of course, the total weight is also very large. However, high-end disc brakes are also very light and more expensive.

The oil brake structure is simple, the assembly area is small, only the brake master cylinder, the sub pump, the oil cup and the connecting pipeline, without other additional facilities, the air brake is much more complicated, in addition to the brake master cylinder, the sub pump, the connecting pipeline, there are also air pumps, air reservoirs, high-pressure controllers, relay valves and other parts, the assembly area is large, the structure is more complex, and in order to ensure safety, the rear brake pump is now all air brakes. The oil brake response rate is slow, the braking is gentle, and the force is small, and the air brake response is fast and urgent, and the braking is rude and strong. Therefore, for those reasons, most of the oil brakes are usually in small and medium-sized vehicles, which are small in size, simple in structure, light in their own vehicles, and do not use great strength, and have a tendency to develop and grow to medium-sized cars.

1. The grinding pads on both sides of the disc brake pad can not be next to the disc brake, otherwise it will cause wear, if the right fixed grinding disc is worn, you can adjust the wheel, or break the welded patch.

2. If the grinding pad on the inside of the brake is next to the disc brake pad, you can use a screwdriver to loosen it slightly.

3. Then adjust the brake, loosen the screws, and then lift the brake arm up.

4. Pull the wire outward, then tighten the screws, and then press the brake arm down.

5. Ensure that there will be no gaps in the handbrake, and at the same time ride and debug, it is required that the general brake can be locked by pressing.

6. Completely press the brake to tighten the disc brake pads, and the space left can be grasped by yourself, but it is required not to affect the wear and tear of the disc brake pads.

It can be checked regularly through the following items, and if it is in line with the situation, it must be replaced immediately.

1. Check the thickness of the brake pads

Check whether the brake pads are thin, you can use a small flashlight to observe and check, when the inspection finds that the black friction material of the brake pads is almost worn out, and the thickness is less than 5 mm, you should consider replacing it.

2. The sound of brakes

If in the process of daily driving, the brake hears a harsh metal whistling sound, at this time you should pay attention, this is the alarm iron plate on the brake pad has begun to wear out the brake disc, so there will be this kind of sharp metal sound.

3. Braking strength

When driving on the road and stepping on the brakes, if you feel very hard, there is always a soft feeling, often need to step on the brakes deeper to achieve the previous braking effect, when taking emergency braking, you will obviously feel that the pedal position is low, then it may be that the brake pads have basically lost friction, at this time must be replaced, otherwise it will cause serious accidents.

In addition, the reduction of braking effect will lead to an increase in brake fluid consumption, so it is important to check the condition of brake fluid when replacing brake pads.

If the brake pad has an induction line, a red word "Please check the brake pad" will appear in the alarm. Then there is an icon, which is a circle, surrounded by several dotted brackets, when the warning light is lit up, it is quite dangerous, because this warning system has a direct sense of the thickness of the brake pads, and some are in the brake pads have been completely worn out, and the brake fluid is therefore extremely reduced, so that the warning lights will be lit.

Adjusting the tension of the disc brake is very simple with a hexagonal wrench. Loosen the screws, then. Adjust slowly.

The length of the drop line. After the adjustment. Nie Xiaozha to see if the tightness is appropriate.

The method is to look at the gap of the disc, adjust one of the screws to tighten and loosen until the gap is suitable, and adjust the other screw until the gap width of the caliper and the brake pad is consistent.

1. The transmission method is different.

The wire pull disc brake is to pinch the brake lever by hand to tighten the steel wire in the wire pipe connected between the brake lever and the brake caliper, and drive the brake clamp to tighten, so that the brake disc is clamped on the disc for braking. When you pinch the brake handlebar, the mechanical structure of the brake lever will compress the space in the line pipe, so that the oil pressure in the line pipe increases, and the brake caliper is pressed through the oil pressure.

2. The weight is different.

In terms of material, a pipeline of the same length and thickness covered with steel wire must be heavier than full of oil, so the oil disc has an advantage over the wire disc in terms of weight.

3. Security is different.

Oil discs are safer than wire discs, imagine if you are riding down the hill, if it is a wire disc, then if the conductive steel wire is broken due to aging corrosion or excessive force, then you will lose the brake, then your life is in danger. Oil discs do not cause this problem.

4. **Different.

Oil discs are more expensive than wire discs.

There are two kinds of disc brakes, one is a red plastic disc near the spoke, which can be adjusted by twisting this disc; There is also a screw on the top of the disc caliper that can adjust the width. Disc brakes consist of a brake disc attached to the wheels and a brake caliper on the edge of the disc. When braking, the high-pressure brake fluid pushes the brake pad to clamp the brake disc to produce a braking effect.

The main advantages of disc brakes: rapid braking at high speed, heat dissipation effect is better than drum brakes, good constancy of braking efficiency, easy to install advanced electronic equipment like ABS, the use of metal blocks (discs) instead of drums, there is a flat brake shoe on both sides of the brake disc, when the oil pressure from the brake master cylinder is sent to the sub-cylinder, so that the brake shoe is clamped to the brake disc, so as to achieve the effect of braking.

Disc brake precautions.

Do not wipe the dish with a dirty cloth: Do not wipe the dish with a dirty cloth when it is dirty, you can prepare a clean cloth in advance.

Do not press the brake lever after loading and unloading the wheels: if the piston is completely protruding, it will need to be corrected with a professional tool, so use the gasket or thick paper that came with the purchase.

Be careful when filling the chain oil or loading and unloading the wheels. In order to avoid contact with the chain, it is better to install a protective cover. In addition, after removing the wheels, the brakes can be held carelessly, which will prevent the piston from returning to its original position.

If you find it immediately, you can also use a slotted screwdriver (knife) to restore it, but if you hurt the oil seal, you may need to go to a professional car shop for repair.

The one upstairs is gear-shifting.

There are several disc brakes, mine has a red plastic disc near the spoke, and you can adjust it by twisting that. There is also a screw on the top of the disc caliper that can adjust the width.

You try to adjust it, but if it doesn't work, take it to the master on the side of the road.

Use a plastic piston spacer to prop the piston back.

After holding the piston back to the starting position, place the tab adjustment tool on top of the disc and then use screws to fix the caliper slightly, slightly, and slightly.

Hold the caliper slightly in place with a 5mm hexagon socket.

Pinch the brake back and forth repeatedly, so that the piston automatically adapts to the position of the disc, and then you can pinch the brake.

After braking tightly, use a torque wrench to tighten the two fixing screws of the caliper.

Check that the caliper screws are fixed, remove the gadget to adjust the tab, and then gently pinch the brake repeatedly, at this time, the piston will automatically advance to the appropriate position, and the left and right spacing of the two sides will be just right and perfect, and will not rub the disc.

Disc brakes

It is composed of 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.

The working principle of the disc brake system is to install a disc that rotates synchronously with the wheels on the hub, and install calipers on the fork and frame, and then clamp the disc through the brake block in the caliper to achieve the purpose of braking.

After years of improvement in material, weight, reliability and other aspects, more and more companies have invested in research and development, making disc brakes more and more popular with consumers, in addition to becoming more and more common in use, it has become the standard equipment of high-end cars, and I believe that it may also become the standard equipment of most bicycles in the future.

The mechanical disc brake can adjust the brake line, and if you adjust the position of the disc brake, you need to use a screwdriver to screw the screw next to it!

Step 1: Make sure that each cable is in the correct position, that it is stuck into the bayonet of the frame, and that the transmission cable is installed correctly. Then tighten the variable speed adjustment screw and loosen it back 3 turns, and the adjustment screw on the shift lever is similarly adjusted.

Straighten the wire as straight as possible and tighten the brake cable fixing screws on the rear transmission.

Step 2: Shift the lever to the middle setting, such as 4th gear. Then adjust the variable speed adjustment screw on the rear derailleur. When the chain is on the corresponding tooth, the guide wheel and the tooth are on the same plane.

Step 3: Adjust the limit screw: The function of the limit screw is to prevent the chain from falling out of the smallest piece of gear or getting caught between the flywheel and the wire.

You can adjust the minimum piece gear first. Release the shift wrench to its lowest setting. See if the smallest gear and guide wheel are in the same plane. Otherwise adjust the screws. Usually marked with H. Adjust to the same plane.

Then adjust the big gear side. The difference is to loosen the screw on the L side first, and then tighten it to the same plane of the two gears after the chain is hung up.

That's basically the way to adjust.

The next thing is to give it a try. Let's try to change the speed of space. Normal should be supple and not beating.

If the upward speed change can not be in place in time, it means that the line is not pulled enough, you need to turn the adjusting screw out a little counterclockwise, usually half a circle and half a circle of adjustment is enough. If you can't change gears, loosen it a little. Then take a ride and see.

Usually, the new shift line needs to be adjusted slightly after a period of shifting.