Quote:
Originally Posted by bret a ewing
I use the tread wear number as a compound "guide", generally speaking, lower the number, softer the compound.
The Hoosier A6/R6's are a 40 (if I remember correctly) and the Avon's are 80.
|
The tyre rating system isn't quite that simple. The UTQS (Uniform Tyre Quality grading System) for treadwear / traction / temperature ratings is an attempt to have a system for comparison of tyre properties. It’ s not perfect for a number of reason, but it at least provides some guidance.
Treadwear is based on a reference tyre that has a rating of 100, so a rating of 40 means the tyre will last 40% as long. Nothing else implied.
The traction rating is closer to a 'compound guide'. It is however a tyre’s traction rating on a wet road. Traction is rated as AA, A, B or C. AA is of course the highest rating.
Temperature is rated as A, B or C. It indicates a tyre’s resistance to building up heat (ie combination of generation and dissipation of heat). A is the highest rating.
Hope that helps.
Glen