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What do the letters on tire speed ratings represent?

1 Answers

LeDaniela

07/30/25 10:02am

The letters on tire speed ratings represent the following meanings: 1. The letter C represents 60 km/h; 2. The letter E represents 70 km/h; 3. The letter F represents 80 km/h; 4. The letter G represents 90 km/h; 5. The letter J represents 100 km/h; 6. The letter K represents 110 km/h; 7. The letter L represents 120 km/h; 8. The letter M represents 130 km/h; 9. The letter N represents 140 km/h. Tires are circular elastic rubber products mounted on various vehicles or machinery to roll on the ground. The functions of tires are: 1. To prevent automotive components from suffering severe vibrations and early damage, to adapt to the high-speed performance of vehicles and reduce driving noise; 2. To support the entire weight of the vehicle, bear the load of the car, and transmit forces and moments in other directions.

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