What do the letters on car tires represent in terms of speed?
1 Answers
Tire letters such as J represent 100km/h, K represents 110km/h, etc. Here's an introduction to tire-related information: Introduction to tire letter grades: The letter Y refers to the tire speed rating, indicating the maximum speed the tire can withstand under specified conditions. Different tires have different letters representing their speed ratings engraved on the sidewalls, with the letter range spanning from A to Z. Tire replacement standards: Rubber has a certain service life. Under normal circumstances, car tires have a service life of about 3-5 years because tires are exposed to wind, sun, and rain for long periods, causing the rubber to gradually age. Aged tires have reduced strength, so when tires reach their service life, they should be replaced promptly.