当前,世界上的自行车正在向轻质、高强、耐用、防腐的方向发展。已经采用的炭纤维,铝合金,铬钼钢等高档轻质材料的自行车,由于价格过于昂贵只适用于少数经济发达的国家和地区。中国是自行车生产大国同时也足自行车消费大国,能够承受高档车的 At present, the world’s bicycles are moving in the direction of light weight, high strength, durability and corrosion resistance. Already adopted carbon fiber, aluminum alloy, chrome molybdenum steel and other high-end lightweight materials, bicycles, because the price is too expensive only applies to a few economically developed countries and regions. China is a big country for bicycle production and also a big consumer country for bicycles, able to withstand high-end cars