Why can t the mountain bike disc brake rotor be reversed, and how it brakes

The reason why the disc brake of mountain bikes cannot be reversed is because the braking principle of the disc brake is to clamp the disc through the caliper to achieve braking, if the disc is reversed, the caliper will not be able to clamp the disc correctly, thereby reducing the braking effect and even causing the brake to fail, which may pose a threat to riding safety.

Disc brakes use hydraulic pressure to brake, and the hydraulic oil pushes the piston in the caliper to push the brake pads, and rubs against the disc to achieve the braking effect. If the disc is reversed, it will cause the caliper to fail to clamp the disc correctly, so that the disc will generate a lot of heat during the friction process, and even cause the caliper to be damaged, thereby reducing the braking effect and even causing the brake to fail.

In addition, disc brakes have better heat dissipation performance and more stable braking strength, so they are widely used in mountain bikes and other occasions that require high-intensity braking. In order to ensure the proper operation of the disc brakes, it is essential to ensure that the discs and calipers are properly matched during installation to avoid unsafe situations.

In short, in order to ensure safe riding, the disc brake rotor of a mountain bike must be installed in the correct direction and not reversed.

Summary. Hello dear! The reasons why the disc brakes of a mountain bike do not work are:

1. Disc brake oil: The principle of disc brake is that the brake pad and the disc friction brake, stained with oil, then there will be no friction, and the car cannot be braked; 2. Too many stains on the disc: If there is mud or muddy water on the disc brake pads, it may also affect the braking effect.

The solution to the mountain bike disc brake is as follows: 1. Replace the disc and the incoming plate; 2. Take water to rinse the disc and brake pads, and wipe the sewage with a dry rag. Disc brakes are composed of a brake disc connected to the wheel and a brake caliper on the edge of the disc, and the high-pressure brake fluid pushes the brake pad to clamp the brake disc when braking.

I hope my answer can solve your problem, if you are satisfied, please give me a like, thanks!

The reason why the disc brakes of a mountain bike do not work.

When the car first arrived, he couldn't brake.

What to do? And how do you tune this brake?

Hello dear! The reasons for the failure of the disc brake of the mountain bike are: 1. The disc brake is stained with oil

The principle of disc brake is that the brake pads and the disc friction brake, stained with oil, then there will be no friction, can not brake the car; 2. Too many stains on the disc: If there is mud or muddy water on the disc brake pads, it may also affect the braking effect. The solution to the mountain bike disc brake is as follows:

1. Replace the disc and the incoming tablet; 2. Take water to rinse the disc and brake pads, and wipe the sewage with a dry rag. Disc brakes are composed of a brake disc connected to the wheel and a brake caliper on the edge of the disc, and the high-pressure brake fluid pushes the brake pad to clamp the brake disc when braking. I hope my answer can solve your problem, if you are satisfied, please give me a like, thanks!

But there's no oil on it, and it feels like the brakes are loose.

Just arrived. That's the problem with the cable of the brake caliper, and you can try to tighten that cable.

How do you adjust the connecting cable?

Phoenix's. You have a ** code, I'll take a look.

Is it such a code?

Right. Hello, loosen my ** two hexagon screws, is loose, do not remove, and then hold the brake tightly do not let go, adjust the brake glue, so that the front end of the brake glue is slightly closer to the rim, the rear end is far away, that is, the back is slightly farther than the front, the starting angle can be larger, if it does not ring it is here, confirm that it is this side and then slowly fine-tune, about 5 degrees more than 1 mm. If it doesn't work, change to the other side, and you can solve the pro by adjusting it appropriately according to the situation on your site.

Mountain bike. The installation direction will be marked on the disc brake disc.

The installation direction is usually indicated in the form of an arrow, i.e., the direction of the arrow is equal to the direction of the tire rolling.

I think there is a floor that is right, if it is reversed, the force is the greatest.

You can install it backwards and simulate the braking situation, when subjected to a strong impact, the disc will not produce a swing in the left and right directions, but the pressure pointing to the shaft. If you turn it around, you can't provide a reaction force.

I also wonder why all bicycles leave the factory with disc brakes reversed, the tensile strength of the disc brake support column is much greater than the compressive strength, the spiral of the disc brake pillar should be consistent with the spiral of the tread, if it is inconsistent, under the high pressure of the brake, the pillar will be deformed, and the disc brake will become a "consumable", which the merchant may deliberately do for commercial purposes. In foreign countries, special-purpose bicycles, such as acrobatic vehicles and off-road vehicles, rely on tensile braking, which is consistent with the direction of the tread and spokes. When braking, the pulling effect of the disc brake on the shaft is much greater than the pressure (thrust) effect.

Hello Mountain Bike Bug Tour" will be happy to help you with your questions about mountain bikes, and our team welcomes you to join

I'm also curious about this question, and I just compared my challenger's BB7 with Suzuki's disc brake (motorcycle).

My BB7 is the simplest disc in the original, with 6 struts at an angle as shown in the picture, but Junwei's disc brakes connect the 12 struts of the outer ring to the center of the circle, which is 90 degrees.

My personal analysis is: in order to obtain greater support force in the case of less struts, the strut and the outer ring must have an angle, and the cutting force is stronger if the "angle forward" means that the rigidity is better, or the inner end of the strut is stressed more (at this time, the torque of the inner end of the strut is small, and the pressure can be greater than that of the outer end).

It seems that the "angle backwards" is more in line with the aerodynamics and the direction of rotation, but the force on the outer end is also large, and the moment is also large, and the pillar is easy to deform

I don't know if this explanation satisfies you, continue if you have questions**

Look at the direction on the **, not the pull is the blocked pressure.

Your "common sense" is not right. The force required to compress steel is much greater than the force required to stretch steel.

You found out, and I found out. Obviously, it is a deformation that is more in line with finite element analysis, but he prefers to do it the other way around. Reverse dressing, the ratio of compressive strength to tensile strength is smaller, and this thickness is not good under compression, and it is likely to be deformed with a high probability.

Then the profiteers will have the opportunity to sell you brake pads, which is really bad. This is the only benefit of reversible dressing.

I'm curious about this question, I'm curious about this question, I'm curious about this question

Aren't there force couples, how do you think you can design them to withstand tension instead of pressure? 6 threads are enough to support such strength is not explained.

Yes, all bikes, including mountain bikes, can be equipped with disc brake rotors and disc brake systems.

Under normal circumstances, only the disc brake mount reserved for the frame and fork can be installed, and the disc brake (disc brake disc) can only be installed with a special hub for disc brake.

Forks and frames that do not have a disc brake mount can be fitted with a disc brake adapter for the purpose of installing a disc brake system, but the strength is not as high as that of a disc brake mount. The disc disc must be installed by means of a dedicated hub for disc brakes. As shown in the figure below:

Disc brakes require disc brakes on the front fork and the left rear fork of the frame, and the disc brake seats are divided into two categories: A and B;

Secondly, the hub of the mountain bike should support the installation of the disc, and the disc has two categories: six-nail type (European and American) and mid-lock type (small Japanese standard).

The above is an international general standard, excluding those domestic knockoffs.

There are two must-haves for disc brakes.

1 Rack and fork have mounts.

2. The hub can be equipped with a disc.

Before loading, you should think about whether you want disc brakes.

The entry-level disc brakes are heavy and inferior, and they are nowhere near as good as the better V-brakes.

If the V brake is to be upgraded, then it depends on whether there is a brake on the fork and frame, and if not, it must be upgraded.

However, upgrading the frame fork, it is estimated that the whole vehicle should be replaced, and it is better to get rid of it and change to a new car.

No, the fork and frame need to have disc brake mounts, and the hub can be fitted with brake discs.

1. Initial stretching.

If you haven't done it when you bought a car, let's do it first. Pull hard with both hands, if the brake is not tight enough, it will fall off. First, it can prevent the emergency braking force in the future from going too hard and getting off the line, and it can also extend the new brake line slightly.

Second, the clearance adjustment.

The clearance refers to the distance from pulling the brake lever to the brake beginning to take effect, too big to react slowly, too small and not good, uncomfortable, adjust to feel comfortable when you pull it up. As the brake pads wear out, the clearance increases.

2.Adjust the adjustment knob on the handle.

1) Twist it out counterclockwise, and remember to lock the fixing screw of the outer ring to the end after adjustment.

2) However, do not turn to the level of almost rapid elapse, so as not to cause danger of falling off.

3. Find the two screws in the circle in the picture. Adjust these two screws, turn the wheel while adjusting, if the wheel is getting tighter and tighter, the adjustment is not right, the screw is **, the wheel is more and more loose, until the friction sound is minimal or there is no time.

Until the wheels rotate the smoothest and there is basically no resistance, it means that you are adjusted, and there is no resistance when riding, which is the easiest.

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.

I'll teach you one of the easiest ways to do it, which is to pinch the clip empty, remove the wheel, pinch the clip empty, and master the strength in your hands, pinch little by little at a time. Due to a special mechanism of the oil dish, the film will not return to its position after empty pinching... So this method works, that's how I did it.

You can adjust the adjustment screws of the adjusting piece and adjust the gap to 1mm.

Try to adjust the brake handle that screw,**There is a tension in the adjustment.。 You look for it.

The problem of tight screws and tight discs should lie in the problem that the distance between the clamp and the disc is too close, the force on the wheel will be a little deformed, and the disc will rub against the disc, find a car repairer, or buy a hex wrench to adjust the disc to the middle of the clamp, and tighten the screws!

The solution to the overall loosening of the disc brake of the mountain bike:

1. Use a spring washer under the disc brake installation screw and tighten it to avoid loosening again.

2. Apply a small amount of nail polish to the disc brake installation screws, and tighten the installation screws when the nail polish is not dry, which can avoid loosening again.

3. A small amount of AB glue is applied to the place where the end of the disc brake installation screw is in contact with the disc brake, and the installation screw is tightened when the glue is not dry, which can avoid loosening again.

The fixed screws are tight, it will definitely not be loose, the disc may be that the brake installation is not correct, you can turn the wheel to see if the disc is biased, if it is positive, then fine-tune.

I also have this problem, did it finally solve it? Seek advice

How can the screws be loosened when they are tightened? You see if the adapter is loose.

Summary. Hello, Car Master Mechanic is here to serve you. Attentive, careful, attentive, for you to answer the car fault problems, for you to find the corresponding problem solutions and maintenance methods.

We will provide you with a satisfactory answer to your questions, I hope this service can help you, if it is helpful to you, I look forward to your praise and attention. Answer: Mountain bike brakes can be changed to disc brakes.

Answer: You can change it, but it is more troublesome, because if you change it, it is not only the brake, but also the possibility to change the frame and fork (the fork and bracket are not necessarily changed, it depends on whether your fork and bracket are taken into account by both braking systems, if not, this should be replaced), because the disc brake is installed near the axle, and the position of the V brake is not the same. Hope it helps.

Hello, Car Master Mechanic is here to serve you. Attentive, careful, attentive, for you to answer the car fault problems, for you to find the corresponding problem solutions and maintenance methods. We will provide you with a satisfactory answer to your questions, I hope this service can help you, if you have Zifan to help, look forward to your praise and attention.

Answer: Mountain bike brakes can be changed to disc brakes. A:

It can be replaced, but it is more troublesome, because if you change it, it is not only the brake, but also the possibility of changing the frame and fork (the fork and bracket are not necessarily changed, it depends on whether your fork and bracket are empty, and the two braking systems are taken into account, if not, this should be replaced), because the disc brake is installed near the axle, which is not the same as the position of the V brake. Hope it helps.