• Uniform Tyre Quality Grading System

      by Published on 02-02-2012 15:46

      UTQG stands for Uniform Tire Quality Grading.

      The National Highway Traffic Safety Administration (NHTSA) in the USA established the Uniform Tire Quality Grading Standards (UTQGS)

      The UTQG rating is made up of three components: Treadwear 320 Traction AA Temperature A

      This Marking Can Be Found On The Tyre Sidewall:

      1 . Treadwear

      The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test track. A tyre graded 200 would last twice as long on the government test course under specified test conditions as one graded 100. It is an oversimplification to assume treadwear grades will be proportional directly to your actual tire mileage. The relative performance of tires depends upon the actual conditions of their use and may vary due to driving habits, service practices, differences in road characteristics and climate.

      It is Important to Note: A tyre may have a high treadwear but be very poor in Grip and Braking in the wet and dry, hence a measured balance is best. At the Tyre Forum.com we would recommend only using this information as a guide due to more factors which determine a tyres overall effectiveness.

      2 . Traction

      Traction grades, from highest to lowest, are AA, A, B and C. They represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. The testing does not take into account cornering, hydroplaning or acceleration.

      3 . Temperature

      The temperature grades, from highest to lowest, are A, B and C. These represent the tyres resistance to the generation of heat.

      From this information you are able to deside which tyre is best for your needs.

      We will publish a full list of the tyres which have been tested including their results shortly.