轮胎的速度等级通常用字母和数字表示,速度等级表示的是轮胎在规定条件下能承受规定载荷的最高速度。
a1 5公里/小时;a2 10k m/h;a3 15k m/h;a4 20k m/h;a5 25km/h;a6 30k m/h;a7 35km/h;A8 40k m/h;
k 110km/h;l 120km/h;m 130km/h;n 140km/h;p 150km/h;q 160km/h;r 170km/h;s 180km/h;
b 50k m/h;t 190km/h;c 60km/h;u 200km/h;d 65km/h;h 210km/h;e 70km/h;
v 240km/h;f 80km/h;w 270km/h;g 90k m/h;y 300km/h;j 100km/h;Zr高于240 km/h