How to choose a bicycle when riding the Sichuan-Tibet line?

generally speaking, the car to Tibet is practical, and it is the key to try not to have problems, so it is better to achieve better performance. Of course, there are all kinds of cyclists who go to Tibet, some have never ridden a bike at all, some have just come into contact with them, and some are old birds and enthusiasts. We are mainly aimed at most cyclists who don't know much about cars but have a little contact with bicycles. The cycling road conditions we envisage are also set according to the general situation of Sichuan-Tibet road, and the preparation may not be sufficient, just to provide suggestions and references for everyone.

1. Analysis of specific parts:

1. Frame: There is basically no problem with the strength of the frame. One thing that must be paid attention to is to buy a low-priced bicycle. It is recommended not to buy that kind of tail hook that is integrated with the frame as much as possible, because it is easy for us to break the tail hook when we fall down on the transmission system while riding, and the integrated tail hook cannot be replaced, so the whole car can hardly be ridden. A better frame has much better power, strength and cornering stability. If it is a cheaper car, I suggest not to do that kind of violent action, such as flying or something. Be gentle with her in a cheaper car.

2. front fork: mainly divided into pure spring, oil spring and air fork. Spring front fork has a general shock absorption effect, oil spring is slightly better, and air fork is the best. On the way to Tibet, you can climb over 14 mountains with an altitude of more than 4, meters, and the altitude can be down to more than 1, to 2,, so there will be a lot of slopes to climb down, so the damping effect will be passable, especially the journey from xinduqiao to Zuogong, which may be as bad as usual, and you probably haven't thought of the degree of it. Good damping effect is your biggest advantage when you go downhill. Imagine that if the front fork is not well damped on the rotten road for dozens of kilometers, your hands and arms will be damaged. Considering the use effect and economy, it is suggested that you choose the hydraulic shock absorber front fork, and try to lock it as much as possible. Although the pure spring type also has locking, the locking structure of this front fork is prone to problems or the locking like Santo xcm can only be locked without receiving gravity, which is very troublesome. The oil spring front fork has better shock absorption performance, and the locking structure is not easy to go wrong, so it is better to use. If you have a bigger budget and are better for yourself, you can choose pneumatic fork, wire control, rebound adjustment, compression adjustment, high and low speed damping, and so on.

3. Braking: Braking is the most important component. Here, we only give you some suggestions on the riding conditions of Sichuan and Tibet this year.

The differences between V-brakes and disc brakes on the road to Sichuan and Tibet are as follows: (What is V-brakes first introduced in the video, What is a disc brake?

A. Long downhill brakes are frequently used, and the V-shaped brake pads will be hot, which will seriously affect the braking efficiency, but the disc brake will not have much influence.

B. There are many pebbles and grains in the mud along the way, which will be sandwiched between the V-shaped brake pads and the steel ring, which will reduce the efficiency when you brake, and will also wear out the steel ring, which will suddenly jam the wheel when it is scrapped more seriously. You can imagine the consequences of the disc brake because the gap is small and the braking effect is small.

C. Disc brakes have greater braking force and better braking performance

D. From an economic point of view, V-type brakes are much cheaper than disc brakes. The structure is simple, and the maintenance is simple and convenient for the first contact.

So if conditions permit, suggest a disc brake, you can learn how to debug it first. It is best to use bb7, which is convenient for debugging, and the gap is relatively large, so it is not easy to clean dishes. There is also a suggestion to use the whole line for braking, that is, don't let the wire core hug outside, so that the sediment will not easily block the brake pipe and affect the braking effect, and it doesn't need regular maintenance. The brake effect is better if the oil disc is used, and the braking force is not easy to decay when going downhill. It feels very light, and it works better when the road is rotten. However, ordinary riders are worried that the oil disc is easy to break down and can't be repaired. In fact, as long as you don't drop it, there is basically no problem riding in Tibet. If you are really worried, choose bb7 cable disc. bb7 is replaced by an all-metal racing disc, and the effect is better. Bb5 is not recommended for people, because the gap is smaller, it is easy to clean the disc, and it is not easy to adjust it. It is not recommended to use the thread disc worse than bb5.

finally, to sum up, the brakes are life-saving things on this road, so we must pay attention to them. Cheap cars can also choose the V brakes. Now basically, the V brakes of the whole vehicle above 1 yuan can be used. If there is a lot of sediment between the ring and the brake pads during riding, it is recommended to clean them at any time, and often check whether the brake pads are badly worn and whether it is time to change them. For disc brakes, bb7 is recommended. Dot oil brake is not recommended for oil dish, which is easy to swell and will not cause trouble to people. shimano is recommended for oil dish. Slower downhill is king.