When it comes to purchasing new tyres for your vehicle, understanding the various ratings that tyres are given can be confusing. However, these ratings can provide valuable information that can help you make informed decisions when choosing tyres. In this blog post, we’ll explain the meaning behind common tyre ratings and how to interpret them.
UTQG Rating The UTQG (Uniform Tire Quality Grading) rating is a grading system that was created by the United States Department of Transportation (DOT) to provide consumers with information about the treadwear, traction, and temperature resistance of a tyre. The UTQG rating is typically found on the sidewall of the tyre and consists of three ratings: treadwear, traction, and temperature.
The treadwear rating is a numerical rating given to tyres that indicates how long a tyre will last before wearing out. The rating is determined by comparing the tyre's tread life to a reference tyre with a rating of 100. A tyre with a rating of 200 will last twice as long as the reference tyre, while a tyre with a rating of 400 will last four times as long. It's important to note that the rating is a relative measure, and the actual mileage a tyre provides will vary based on factors such as driving conditions, vehicle type, and driving habits.
The traction rating represents the tyre’s ability to stop on wet pavement. The rating is given as a letter, with “AA” being the highest rating and “C” being the lowest.
The temperature rating represents the tyre’s ability to dissipate heat. The rating is given as a letter, with “A” being the highest rating and “C” being the lowest.
EU Tyre Labeling requires fuel efficiency, wet grip, and noise level rating for tires sold in Europe. Fuel efficiency rating varies from A to G with A being the most efficient. Wet grip rating ranges from A to G with A being the best. Noise level rating is measured in decibels with one, two, or three black sound waves indicating the noise level compared to EU noise limits.
Load Index The load index rating is a numerical code that indicates the maximum weight a tyre can support when it is properly inflated. The load index rating can be found on the sidewall of the tyre and is typically paired with the speed rating. It is important to choose a tyre with a load index rating that is appropriate for your vehicle to ensure that it can safely support the weight of the vehicle and its occupants.
Speed Rating The speed rating indicates the maximum speed that a tyre can safely sustain over time. The speed rating is given as a letter, with “S” being the lowest rating and “Y” being the highest. It is important to choose a tyre with a speed rating that is appropriate for your vehicle to ensure safe driving.
Other Ratings In addition to these common ratings, there are other ratings that may be listed on a tyre’s sidewall, such as the aspect ratio, section width, and rim diameter. These ratings provide important information about the tyre’s size and dimensions.
Interpreting Ratings for Informed Purchasing Decisions Understanding tyre ratings can help you make informed decisions when purchasing tyres for your vehicle. To choose the right tyres, consider your driving needs and preferences, as well as your vehicle’s requirements for load and speed. If you have any questions about tyre ratings or need help choosing the right tyres for your vehicle, consult with a tyre professional, such as those at Tyre Dispatch.
Conclusion Understanding tyre ratings is an important part of making informed decisions when purchasing tyres for your vehicle. By understanding the meaning behind common tyre ratings, such as the UTQG rating, load index, and speed rating, you can choose tyres that are appropriate for your vehicle and driving needs. At Tyre Dispatch, we’re committed to helping you find the right tyres for your vehicle. Our team of experts can provide guidance and advice to help you make the best choice for your needs.