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BMX——A型自行车是保定市对外出口的一项重点产品,这种自行车的结构与目前国内自行车的结构不同,它的前叉和后平叉板都装有避震弹簧,车架安放在前、后弹簧上,随着骑车人体重不同和路面颠簸状况不同,前、后车轮的轮距在改变,车架所处的空间位置也在变化,骑车人即使在极其颠簸的路面上骑驶,由于前、后车轮经过弹簧减震,也会感到平稳舒适,因而在国际市场上颇受使用者欢迎.
BMX - A type bicycle is a key export product of Baoding. The structure of bicycle is different from the structure of domestic bicycle at present. Its front fork and back fork plate are equipped with shock absorber spring. Before and after the spring, with the rider different body weight and road surface bumpy situation is different, before and after the wheel’s wheelbase is changing, the frame where the spatial location is also changing, even in extremely jolted bike riders on the road Riding, due to the front and rear wheels after spring damping, will feel smooth and comfortable, and therefore very popular in the international market.