Mountain bike is a bicycle specially designed for off-road (hills, trails, Yuan Ye, gravel roads, etc.). It was born in San Francisco on the west coast of the United States on 1977. At that time, a group of young people who were keen on riding beach bikes on the hillside suddenly thought, "It must be interesting to ride a bike down the mountain." So the design system of cross-country bike began, and it was not officially named mountain bike until two years later. Since then, "downhill competition" has emerged as a new event in sports competitions. Athletes ride mountain bikes at high speed along the prescribed downhill route, and the fastest one wins, attracting many fans.
Bicycles originated in Europe, but the traditional idea of sweeping bicycles by mountain bikes invented by Americans has blown up a new wind all over the world.
2. Classification of mountain biking:
With the improvement of people's material and cultural living standards and the increase of sports events, cycling as a means of transportation has also become a kind of sports equipment, and cycling has also become a favorite sports competition.
Mountain bike is divided into downhill race and hyperbolic race, which is very similar to the skiing event of the same name-the former is that the driver slides down a downhill track and then calculates the shortest time to win. In the latter case, two drivers slide down two parallel downhill roads at the same time, jump over the soil slope while driving in zigzag, and the first one to arrive wins. As the name implies, cross-country races are held in the wild and natural environment. The total length of the races is usually between 65,438+06 and 24 kilometers, and no less than 65,438+0/4 of the tracks are artificially repaired. The trick of all competitions is to follow the established track and avoid taking too many wrong paths.
3. Development of mountain biking:
In mountain biking, French athletes have developed into a new force in today's international competitions, and together with other strong teams such as the United States and Australia, they have become the best in this sport. In this year's World Championships, French racers Follows and Gassout won the men's downhill event and the runner-up respectively. In the women's downhill competition, Shu Ze won another championship for France in the junior group. It is worth noting that it took her even faster to win the championship in this group than the record set by the senior athletes, which shows that France is very strong in downhill events. In cross-country events, Ban Zan of the Netherlands became the champion of the men's team, and the crown of the women's team was won by Canadian female knight Xiandai. After conquering the German Black Forest, these COVID-19's world "kings of mountain roads" will face even greater challenges-the mountain bike race has been officially approved by the International Olympic Committee and made its debut as a competition at the Atlanta Olympic Games in 1996.
4. The characteristics of mountain bike:
In the kingdom of bicycles, mountain bicycles have an irreplaceable position. Its variety and pattern are unmatched by other models. But because of this, many novice cyclists have not bought the most suitable mountain bike for them. We can often see such lovers around us. They saw that the car of FR or DH looked cool, so they went to buy FR and DH, without considering just riding on the road, and complained because they were overweight. Or if you see that disc brakes look cool and expensive compared with other brakes, you think that disc brakes must be very good. Don't buy non-disc brakes. The final result of this blind consumption is a great waste of money and energy.
It is specially designed for off-road (hills, trails, Yuan Ye, gravel roads, etc.). Its main features are: wide tires, straight handlebars, front and rear shock absorption and comfortable riding. Wide-toothed tires provide grip and shock absorbers absorb impact. In recent years, the application of front shock absorption has become a standard, and vehicles with front and rear shock absorption have become more and more popular. Some mountain bikes began to use auxiliary handlebars, but the handlebar with rising angle became fashionable.
1. Mountain bike has the characteristics of high rigidity and flexible walking. You don't need to choose a road when riding, and whether you are roaming the streets or riding casually, you have won wide acclaim. Cyclists can enjoy comfortable riding pleasure in various road environments.
2. Mountain bike, because of its solid, rough and novel appearance, colorful and dazzling colors and superior riding performance, has quickly become the fashion pursued by urban youth.
3. Mountain bikes are different from ordinary bicycles in various parts, such as tires with good cushioning effect and strong impact resistance, solid frames with high material rigidity, handlebars that are not easy to fatigue, and gearboxes that can ride smoothly even on steep slopes, which make mountain bikes more suitable for mountain climbing, cross-country and outing.
5. Classification of mountain bikes:
1. Ordinary off-road
50% uphill and 50% downhill: it is used for ordinary mountain cross-country and is also the lightest and most practical model of mountain bike. Because the strength is moderate, we can pursue lightweight.
2. Double race
70% uphill and 30% downhill: it is suitable for high-intensity cross-country at the competition level, but the cost is too high, about 10 thousand yuan.
3. Free ride
40% uphill, 60% downhill: playing in the wild jungle, you can also fly, which requires high strength and some equipment is close to DH.
jump
30% uphill, 70% downhill: a flying car needs a heavy and high-strength frame to soar in the air, and the money is not cheap.
5. Downhill DH (Downhill)
0% uphill, 100% downhill: rushing down from the top of the mountain at a speed of 60 km/h, extremely long shoulders *, ultra-high strength requirements, the general cost is about 30,000-50,000 yuan, and the center of gravity moves backwards, which is not suitable for climbing mountains; Because of its heavy weight, it is not suitable for general cross-country riding.
6. The role of bicycles
In fact, in many countries, including Chinese mainland, bicycles are one of the most important means of transportation. However, even in countries with developed industries and the latest means of transportation, such as Japan, many people are still willing to use bicycles. This is because riding a bike is more labor-saving than walking and more economical than driving. And it's convenient to come and go, so don't worry about traffic jams and no parking spaces! 2. Fitness Equipment In the United States, more and more people ride bicycles, but they don't rely on it as a means of transportation, but use it for fitness! Modern people don't take enough exercise, so they become more and more obese and suffer from more and more heart diseases. Under the appeal of the medical profession, there has been a craze for jogging, but for people with excess fat, cycling is a suitable way to lose weight and keep fit! Other sports that want to run and jump are defying gravity, which is difficult to last; But bicycles are different. Sitting comfortably, only pedaling with your legs, without supporting your own weight, is particularly easy to keep fighting spirit and stick to it! Smart businessmen invented the exercise bike, which is most suitable for ladies who are afraid of the sun and busy administrators. They can exercise and engage in other activities at the same time and never waste time! Of course, bicycles are also suitable for the elderly, the sick and the disabled, and those who recover from accidental injuries, because they don't need much effort, and they are quite safe and not too intense.