WebSpeed rating standards are established by the U.S. Department of Transportation (DOT). Manufacturers assign speed ratings to tires after extensive performance testing. On the … WebThe “T” or “H” on tires pertain to their speed ratings. A T-rated tire can withstand top speeds of up to 118 mph (190 km/h), while an H-rated tire can support up to 130 mph (210 km/h). It is important to note these markings and stay within those speed limits.
Tire Speed Rating: How to Find It, What the Letters Mean - Tire …
WebCommon Speed Ratings. When you look at a speed rating chart, you'll notice ratings are represented by letters. Each letter has a corresponding speed rating approved by the DOT (U.S. Department of Transportation) and the tire manufacturer. The most common speed ratings range from L (75 MPH) to W (168 MPH). Exotic sports cars typically have a ... WebThe actual speed rating of the tires currently fitted on your vehicle are molded onto the sidewall of your tire at the very end of your tire’s size code, following the load index. For example, in a tire size code of P225/60R16 … the disaggregation of data called
Tire Speed Rating & Chart Pirelli
WebApr 1, 2024 · Many tire speed rating charts also list the “Z” rating as anything over 149 mph. Some manufacturers will insert a “Z” in the middle of the tire size description (right … WebU.S. DOT STANDARD SAFETY CODE. The letters "DOT" certify compliance with all safety standards established by the U.S. Department of Transportation (DOT). This is followed … Web140Q – Load & Speed Rating. LT-Metric LT285/70R17 121/118S Load Range E. 285 – Section Width in millimeters. 70 – Aspect Ratio. R – Designates the tire has radial construction. 17 – Wheel Diameter. 121/118 – Load Index. S – Speed Rating. Letters C, D, E, and F designates the load rating of the given tire. the disanto companies