Used in smooth highway pavement is used on bicycles, due to the smooth road dragging lesser, road bike design more considerations, often use high-speed can reduce the wind drag under bending handle, narrower high low air pressure resistance tues, block a high, and the wheel diameter than the average mountaineering suvs because frame and accessories, not like a mountain as necessary to strengthen so often light in weight, riding on a highway when the efficiency is very high. Because it often need to strengthen frame using simple and efficient diamond design, is the most beautiful road car bike.
The earliest cycling competition is in France in 1868 holy Claude park held. 1892 from Belgium, Canada, Denmark, Britain, France, Germany, the Netherlands, some American cycling enthusiasts launch, organized international cycling sports association, this is the predecessor of the international cyclists union. In 1893 organized the first world amateur bicycle championships. In 1895 organized the first world championship in professional cycle. In 1896 first Olympic Games, bicycle was listed in the official event. In 1900 April 14 established international cyclists union, headquartered in Geneva. Now international cyclists union headquarters in AIGLE.
characteristics
1. The tyres than normal bicycle tyre narrow and tire pressure can reach 10 [1] 0-200psi (a) above pounds per even square, so while driving in the process of rolling resistance and low compared to many mountain bike.
2 the flywheel with tooth disk than (namely the tooth pinion ratio) is very big, general road cycling gear ratio can reach as or even higher.
3. Now the road bike widely adopted new materials, such as titanium, carbon fiber, senior aluminum alloy material, etc, so the road bicycle very light weight, can achieve 5kg below, but international since united prescribed CanSaiChe shall not be lower than 6.8 kg.
4. Generally adopted hard materials, easy to athletes send force. This point and mountain bike is very different. Because the road bike is in relatively good highway roads riding above, so you don't have to like the latter that, too consider absorb shock.
Due to the above characteristics, road bike ride faster than ordinary bicycles much quicker. Ordinary lovers slightly after, generally all training can achieve an hour ride 35 km level road level. And a good road bike athletes in traffic good flat road section long-distance riding average with when degrees can keep in 40 to 50 kilometers per hour.
Difference between
Road cycling and ordinary bicycles
Road bike ride faster than ordinary bicycles much quicker. Ordinary lovers slightly after, generally all training can achieve an hour ride 35 km level road level. And a good road bike athletes in traffic good flat road section long-distance riding average with when degrees can keep in 40 to 50 kilometers per hour.
history
International bicycle development
Early cycling mainly in Europe, America, some developed countries. In sports grades European player has an absolute advantage, especially in France, Britain, Italy, Belgium, Germany's once had a corner on the world record and world best results. Until 2004 Athens Olympic Games, Australia with 6 gold MEDALS absolute advantages rewritten in Europe in Olympic history cycling monopoly. In the 1950s, mountain bike cross-country appear in France, and gradually popular in Europe. First mountain "is the 20th century 70's in American San Francisco, fla. 1991 held their first World Cup. 1996 was an Olympic event.
In 1960s, California, USA has a new bicycle sport: small wheeler. Since the early 1970's, the United States established the earliest small wheeler organization. April 1981 international small wheeler union formally established. 1982 held the 1st session of the world small wheeler championships. In 1993, small wheeler officially became a member of the family sport of cycling. December 2003 international Olympic committee formally approved small wheeler for 2008 Beijing Olympic Games.
Olympic cycling history
In 1896 first Olympic Games, bicycle programs can be listed in the official event. In the initial stage, the development of the Olympic Games venues, highway two only partial matches. And in xiao xiang game on distance and achievements statistics vary considerably. In the 20th century 20 ~ 1940s, venues, road cycling race SheXiang are relatively tends to norms, In the 1950s, the international ZiMeng to Olympic Games after the project Settings, cycling competition methods further standardization. Meanwhile, in the Olympic Games of additional events are high quality, popular, more mature competition projects, such as: mountane cross-country, small wheeler project. From the Olympic Games SheXiang table can be seen in bicycle, contemporary Olympic cycling competition both traditional project, also has the modern new item, and events and more competition methods and standardization.
Track facilities
Highway personal time
General select pavement are relatively flat, the entire circuit ups and downs smaller sections. The track to safety, and have good road signs. Every 5 kilometers, marked athletes remnant ride distance. In sections, each kilometers uphill there has to be a sign. After the match began, sections only by athletes and tailing equipment car, as well as the referee vehicles. In the beginning, the organizing committee must also provide near a at least 800 meters long hoop sections, as athletes warm-up area. If the track for two-way running sections, track the central must set segregation. Turning point to place turn symbol. The starting point of the online game should set athletes starting platform. Starting platform ahead to placed countdown clock hint athletes start. All athletes to accordingto scheduled departure time from starting stage start. The finish line to set up electric timing layering or photoelectric timing devices. Destination place also should have the three-dimensional end camera equipment and electronic display screen. In could also should have athletes to rest preparation areas and roll call, inspection car area, and referees work area.
Highway in individual
Competition generally choose in various terrain change track or in circles and highways. Road can be had ups and downs and slope, road width is generally not be less than 6 meters. The marathon start and finish the width of the road shall be not less than 8 meters. Destination before at least not less than 500 meters straight, the finish line after the buffer section has no less than 100 meters straight. Start and end point can be located in the same place.
Track should set fixed game instructions from the sign: could start marked 0 km, 50 kilometers and final 25,20,10,5,4,3,2 kilometers. At last one kilometre away from end to have obvious red marks. Destination place should have the "final" type of banners. In addition, indicate the following from the finish line distance: 500 meters, 300 meters, 200 meters, 150 meters, 100 meters and 50 metres.
If competition is in a ring road section, even for athletes instructions of finishing the race residual lap. If choose ring circuit as race route, circular track the circumference of the shortest is not less than 12 kilometers.
Depending on the match distance and events of the actual situation, in race track can set up supply area. Supply area requirement: have clearly marked marked supply area start and end point, have long enough to guarantee athletes can successfully get supplies.
In the game of regional, still should set point of departure sign-in athletes district and vehicle inspection area, and referees work area.
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