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Fitment information on this Web site is derived from the product manufacturers and distributors. Product fitment is based on the STOCK version of the vehicles listed. Any representation on this Web site is made purely as an aid to you, the consumer, to help identify possible fitment. The use of any part in or upon any piece of motorsports equipment is the responsibility of you, the consumer. We shall not be liable to any part for any form of loss or damage incurred as a result of any use or reliance on any information contained on this site.
UTQG (Uniform Tire Quality Grade):
A government-mandated tire rating system based on a tire's performance in treadwear durability, traction, and temperature resistance. UTQG ratings are branded on the tire's sidewall. Generally under controlled conditions, the higher the treadwear number (normally between 60-780), the less the tire will wear over time. Traction is based on lettering AA, A, B, C. Having an “AA” means the manufacturer rated tire high for traction. Temperature (A-C) represents how well a tire disperses heat at maximum speeds. An “A” rating means it dissipates heat at a higher speed.
Service Description: A service description is a number and a letter that together describes the tire’s load index and speed rating. This is generally molded into the sidewall of the tire. For instance, using 225/60R/18 99H as an example, the 99H denotes the tire’s service description. (See Load index, and Speed Rating).
Load Range: The maximum weight that the tire is designed to carry; dictated by the tire's construction. Metric passenger type tires are offered with a Standard Load (SL) Rating (up to 35 psi), or Extra Load (XL) Rating (up to 41 psi). LT Metric (truck type) tires are offered with ply ratings of C (6 ply), D (8 ply), and E (10 ply) and at various inflation pressures up to 80 psi.
Tread Depth: Measured in 32nds of an inch, Tread depth measures the top of the tire tread rubber to the bottom of its grooves. Tires should be replaced if worn down to 2/32nds or below.
Speed Rating: A code (A-Z) indicating the maximum speed a tire can carry in relation to a specified load capacity.
*For tires having a maximum speed cpability above 149 mph, a ZR may appear in the size designation. Above 186 mph a ZR must appear in the size designation, including a Y speed symbol in brackets.
Load Index: An assigned numerical code that corresponds to the load carrying capability of a tire. The higher the Load Index number, the greater a tire’s load it can carry.