1、轮胎的基本数据参数都在轮胎的胎壁上展现，其中箭头表示车辆向前行驶时轮胎滚动的方向，一般在轮胎外侧。
1. The basic data parameters of the tire are displayed on the tire wall, where the arrow indicates the rolling direction of the tire when the vehicle is moving forward, generally on the outside of the tire.
2、Outside标识是轮胎外侧的意思，装反之后会影响轮胎抓地力和轮胎的导水性。
2. Outside logo means the outside of the tire, which will affect the grip and water conductivity of the tire after being reversed.
3、4位数字表示轮胎的生产日期，比如轮胎数字3120，表示20年第31周生产的轮胎，前两位表示周，后两位表示年。
3. The 4-digit number represents the production date of the tire. For example, the tire number 3120 represents the tire produced in the 31st week of the 20th year. The first two digits represent the week and the last two digits represent the year.
4、轮胎有一种标识，如225/55/R19101V，表示的含义为：
4. The tire has an identification, such as 225/55/R19101V, which means:
225表示轮胎的宽度，宽度是225mm，数字越大表示轮胎的抓地力越强，55表示轮胎的高宽比，高宽比是55%，数字越小轮胎越扁，R表示轮胎是子午线轮胎，绝大多数轮胎用的是R，少数型号轮胎会用D，D表示斜交轮胎，19表示轮胎直径，直径的单位是英寸。101表示轮胎的负载系数，数字越大表示车辆可装载物品越多，V表示速度等级，字母排序越靠后，表示车辆行驶中轮胎可承受高速负荷越大，一般跑车是Z或者ZR等级。
225 refers to the width of the tire. The width is 225mm. The larger the number is, the stronger the grip of the tire is. 55 refers to the height-width ratio of the tire. The height-width ratio is 55%. The smaller the number is, the more flat the tire is. R refers to the radial tire. Most tires use R. A few types of tires will use D, D refers to the diagonal tire, and 19 refers to the tire diameter. The diameter unit is inches. 101 indicates the load factor of the tire. The larger the number is, the more items the vehicle can load. V indicates the speed grade. The lower the alphabetical order is, the greater the load the tire can bear at high speed during driving. Generally, sports cars are Z or ZR grades.
5、
济南奔驰汽车保养人员认为，部分车辆的备胎会有胎压标识和行驶速度标识，300kpa（44psi）表示正常情况下大充气压力值，80km/h表示高行驶速度。
5. Jinan Mercedes-Benz auto maintenance personnel believed that the spare tire of some vehicles would have a tire pressure sign and a driving speed sign. 300kpa (44psi) represents the high safety inflation pressure value under normal conditions, and 80km/h represents the high driving speed.
6、北方冬季会见到带有ST标记的轮胎，st的含义是雪地胎，能承受更低的温度，常规轮胎会标识HT，ht的含义是普通公路胎。
6. Tyres with the ST mark will be seen in the north in winter. st means snow tyres, which can withstand lower temperatures. Conventional tyres will be marked with HT, and ht means ordinary road tyres.
What do you think of the parameters of car tyres? The above explained the problem from six aspects. I hope it can help you. Please contact us for more information about car repair and maintenance http://www.lutongqixiu.com Come on!
