自行车已成为城乡人民主要的交通工具。自行车负重多少,对骑车者来说是应该知道的。骑车带物过重,是不妥当的。自行车外胎负荷量是有规定的,重型车一般是150公斤、普通型车100公斤、轻型车70公斤。负荷量是指车胎实际能承受的重量(包括自行车和人的重量)。前轮约承担总重量的三分之一、后轮约承担总重量三分之二。后衣架承担的重 Bicycles have become the main means of transport for both urban and rural people. How much weight a bicycle should have for a rider. Bicycling overweight is not appropriate. Bicycle tire load is a requirement, heavy vehicles are generally 150 kg, 100 kg ordinary cars, light trucks 70 kg. Load is the actual weight of the tire (including the weight of bicycles and people). The front wheels take about one-third of the total weight, and the rear wheels take about two-thirds of the total weight. After the hanger bear the weight