Speed Rating of Tire
Speed rating of tire indicates the maximum speed of your car tire that is capable of use. It was developed to identify the maximum speed of tire against the top speed of the car where it will be installed. However tire manufacturers do not recommend using the tire beyond the speed limit required by the law.
When choosing a replacement tire for your car it is important that the speed rating of the original tire that is installed on your car should also be consider. The tire speed rating was stamped on the sidewall of a tire. If you look closer to the sidewall of the tire you will find a symbol similar to the picture shown.
The tire speed rating is located just after the tire load index symbol, as in the case of the picture above the speed rating for this tire is indicated by letter H, and if we look at the speed symbol from the table for speed rating equivalent speed value, we can determine that the equivalent value for letter H is 210 kph, in this case this mean that the tire should not be operated beyond the specified speed rating of 210 kph.
Tire speed rating given below as follows: Speed symbol/speed (km/hr)
Note: The speed rating is void if the tires are worn out, damaged, repaired, retreaded, or otherwise altered, they should not be operated at higher than normal highway speeds.
*Current tire speed rating markings include the use of the service description to identify the tire’s speed capability. (P215/65R15 95V – Maximum speed 149mph)
**Any tire with a speed capability above 149 mph (240 kph) can, at the tire manufactures option, include “ZR” in the size designation (P275/40ZR17). If a service description is not included with the size description, the tire manufacturer must be consulted for the maximum speed capability (P274/40ZR17 –Speed capability is >149mph). If a service description IS included with the size description, the speed capability is limited by the speed symbol in the service description (P275/40ZR17 93W=maximum speed 168 mph (270 Kph).
When choosing a replacement tire for your car it is important that the speed rating of the original tire that is installed on your car should also be consider. The tire speed rating was stamped on the sidewall of a tire. If you look closer to the sidewall of the tire you will find a symbol similar to the picture shown.
The tire speed rating is located just after the tire load index symbol, as in the case of the picture above the speed rating for this tire is indicated by letter H, and if we look at the speed symbol from the table for speed rating equivalent speed value, we can determine that the equivalent value for letter H is 210 kph, in this case this mean that the tire should not be operated beyond the specified speed rating of 210 kph.
Tire speed rating given below as follows: Speed symbol/speed (km/hr)
Note: The speed rating is void if the tires are worn out, damaged, repaired, retreaded, or otherwise altered, they should not be operated at higher than normal highway speeds.
*Current tire speed rating markings include the use of the service description to identify the tire’s speed capability. (P215/65R15 95V – Maximum speed 149mph)
**Any tire with a speed capability above 149 mph (240 kph) can, at the tire manufactures option, include “ZR” in the size designation (P275/40ZR17). If a service description is not included with the size description, the tire manufacturer must be consulted for the maximum speed capability (P274/40ZR17 –Speed capability is >149mph). If a service description IS included with the size description, the speed capability is limited by the speed symbol in the service description (P275/40ZR17 93W=maximum speed 168 mph (270 Kph).
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