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The Difference Between Disc Brakes and V-brakes of Bicycle Brake Accessories

1. The difference between disc brakes and v-brakes in bicycle brake accessories: braking effect


The V brake is the rim of the brake, and the disc brake is the axis of the brake. The distance from the brake point to the axis is also the length of the power arm of the brake. After studying physics, we know that the longer the power arm, the greater the power (leverage principle). The position of the V brake is on the side of the wheel, and the position of the disc brake is almost It is close to the axis, which means that the power arm of the V-brake is much longer than the power arm of the disc brake, which means that when the mountain bike is running, a person squeezes the brake with the same force, and the car with the V-brake bicycle brake parts is installed. The brakes are more sensitive and easier to stop than a car with disc brakes. However, sometimes due to the excessive braking force of the V-brake, the novice is prone to wheel locking, tail warping, and rear wheel slippage when riding a bicycle. In fact, it is caused by the poor handling of the car.


2. The difference between disc brakes and v-brakes in bicycle brake accessories: weight


It is worth noting that in general, low-priced disc brakes are about 800g to 1kg heavier than V-brake cars, and the gap between high-end cars is smaller. By listing the weight separately, it can be seen that this is an important factor that has an impact on riding and has to be considered.


3. The difference between disc brakes and v-brakes in bicycle brake parts: braking force


For the wire disc and oil disc, the wire disc uses steel wire to transmit the power of the handbrake. The oil disc transmits the power of the handbrake with hydraulic oil. They work basically the same. However, since the resistance of hydraulic oil in the oil guide pipe is much smaller than the resistance of the steel wire in the wire pipe, the loss of the handbrake force of the oil disc is smaller than the loss of the wire disc. That is to say, the braking force of the oil disc is slightly stronger than that of the wire disc, but it is still lower than that of the V-brake.


4. The difference between disc brakes and v-brakes for bicycle brake accessories: design


In bicycle brake accessories, the disc brake is braked by the caliper acting on the steel disc fixed on the hub; the V brake is braked by the V brake caliper holding the rim. Relatively speaking, the radius of the rim is much larger than the radius of the disc brake disc, so the brake arm of the disc brake is much smaller, so theoretically it is less likely to lock. Locking is fundamental to a sports bike's braking requirements, but isn't the easier it is to lock up, the better? The answer is no, unless you're playing a trick bike like climbing that requires you to lock up immediately.


5. The difference between disc brakes and v-brakes in bicycle brake accessories: brake structure


The V-brake bicycle brake parts have simple structure, high reliability and easy maintenance. The structure of disc brakes is complex, difficult to install, difficult to debug, and difficult to maintain. Improper installation will greatly reduce the service life of the disc brakes and reduce the inherently low braking force. The reliability of disc brakes is lower than that of V-brakes (because there are many disc brake parts and high precision, any problem with any part will affect the use of disc brakes). Disc brakes are difficult to repair, and non-professionals are likely to get worse and worse. Especially the Hydraulic disc, unprofessional brutal and blind maintenance will damage the Hydraulic disc.


6. The difference between disc brakes and v-brakes in bicycle brake accessories: working characteristics


The friction of the v-brake is the contact friction between the rubber compound and the rim. Generally, the braking effect is still very strong. Unless you continue to brake at a high speed downhill, the braking force will be weakened at such a temperature. The higher the temperature, the lower the braking effect (thermal decay).


Disc brakes are braked by friction between metal discs and disc brake friction blocks. Such brakes are very strong, similar to cars and high-end motorcycles. They are not affected by rain and bad road conditions. Because disc brakes The friction block is a metal sintered substance, so it rubs against the steel sheet, even in rainy days and in the case of mud, the working condition is still good, although the braking force drops significantly, but it is stronger than the rubber and aluminum alloy rim friction of the V-brake. Also, because the disc brake rotors are steel and generally have holes, the attenuation with the increase of heat during continuous downhill braking is also better than that of V brakes.


7. The difference between disc brakes and v-brakes for bicycle brake accessories: brake price


V has a simple structure, and the precision requirements are not as high as that of disc brakes, so the price is generally lower than that of disc brakes. So here comes the question? Do you prefer V brakes or disc brakes?


For young people, who must ride mountain roads in the mountains, and if the budget is in place, you can choose disc brake bicycle brake parts. If you feel that you will use disc brakes in the future, choose the right hub, otherwise it will be troublesome to upgrade in the future.

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