Tire Speed Ratings
All tires made today are required by law to have a speed associated with them before they can get DOT approval. This number ensures that the tire will withstand highway speeds, and more on certain models designed for pricey exotics.
At a bare minimum, we here at TractionReview.com recommend no lower than “S” rated tires for normal street use. While many folks will never see 112 MPH, it’s always better to have a tire rated for a higher speed than you will ever drive at than to be at the tires limit under normal driving conditions on the highway.
| Speed Rating | Maximum Speed (mph) | Maximum Speed (km/h) | Common Applications |
|---|---|---|---|
| M | 81 | 130 | |
| N | 87 | 140 | Spare tires |
| P | 93 | 150 | |
| Q | 99 | 160 | Stud-less Snow Tires |
| R | 106 | 170 | Vans and Light Trucks |
| S | 112 | 180 | Family Sedans |
| T | 118 | 190 | |
| U | 124 | 200 | |
| H | 130 | 210 | |
| V | 149 | 240 | |
| W | 168 | 270 | Exotics |
| Y | 186 | 300 | |
| Z | 149+ | 240+ | |
| (Y) | 186+ | 300+ |
+ Denotes “in excess of”. While there is no set limit, the tire was tested and approved at speeds above the indicated test level. Please note the difference between Y and (Y).
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This entry was posted on Sunday, October 14th, 2007 at 10:22 pm and is filed under Articles & Tire FAQ. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
