自行车运动起源于十九世纪初的欧洲。目前国际自行联合会拥有一百六十多个会员国。比赛时运动员骑的自行车不同于一般作为交通运输工具的自行车。特制的赛车用轻金属制成(图1),全车重约八公斤左右,造价比一般自行车高好多倍。自行车比赛可在公路(图2—6)和赛场《图7—9)举行。公路赛团体赛距离为一百公里(图10),个人赛则在一百七十公里至一百九十公里(图11)。在赛场内,跑道呈椭园盆形,比赛的最远距离为四千米,设有计时赛、争先赛,追逐赛等。此外,还有超长距离的 Cycling originated in Europe in the early nineteenth century. Currently IIP has more than 160 member states. The bike the athlete rides during the race differs from the one that is generally used as a means of transport. Special car made of light metal (Figure 1), the whole car weighs about eight kilograms, the cost is much higher than the average bike. Bicycle competitions can be held on highways (Figure 2-6) and stadiums (Figure 7-9). The road race group distance is 100 km (Figure 10) and the individual race is between 170 km and 190 km (Figure 11). In the stadium, the runway was oval-shaped basin, the game distance of up to four kilometers, with time trial, first race, chase race and so on. In addition, there are long distance