1、輪胎的基本數據參數都在輪胎的胎壁上展現，其中箭頭表示車輛向前行駛時輪胎滾動的方向，一般在輪胎外側。
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標識是輪胎外側的意思，裝反之后會影響輪胎抓地力和輪胎的導水性。
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位數字表示輪胎的生產日期，比如輪胎數字3120，表示20年第31周生產的輪胎，前兩位表示周，后兩位表示年。
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、輪胎有一種標識，如225/55/R19101V，表示的含義為：
4. The tire has an identification, such as 225/55/R19101V, which means:
225表示輪胎的寬度，寬度是225mm，數字越大表示輪胎的抓地力越強，55表示輪胎的高寬比，高寬比是55%，數字越小輪胎越扁，R表示輪胎是子午線輪胎，絕大多數輪胎用的是R，少數型號輪胎會用D，D表示斜交輪胎，19表示輪胎直徑，直徑的單位是英寸。101表示輪胎的負載系數，數字越大表示車輛可裝載物品越多，V表示速度等級，字母排序越靠后，表示車輛行駛中輪胎可承受高速負荷越大，一般跑車是Z或者ZR等級。
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、
濟南奔馳汽車保養人員認為，部分車輛的備胎會有胎壓標識和行駛速度標識，300kpa（44psi）表示正常情況下大安全充氣壓力值，80km/h表示高行駛速度。
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、北方冬季會見到帶有ST標記的輪胎，st的含義是雪地胎，能承受更低的溫度，常規輪胎會標識HT，ht的含義是普通公路胎。
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.coqenpate.cn Come on!
