The speeds shown are test speeds they are not recommended speeds. However, if you are looking for better handling, there is generally no problem in moving up to a higher speed-rated tire. We don’t recommend downgrading the speed rating of your tires, as the vehicle manufacturer has done extensive testing to determine which tires match the various driving characteristics of the vehicle. Never mix tires with different speed ratings, as this may cause serious handling problems.

above 186 mph, a Z rating must appear in the size designation, including a Y speed symbol in brackets. The tire may be able to reach higher speeds, but traveling at speeds higher than 99 mph for any length of time would be unsafe - the tire is not designed to handle it.įor tires having a maximum speed capability above 149 mph, a Z rating may appear in the size designation. Tires with a Q speed rating can safely sustain speeds of up to 99 miles per hour. On the sidewall of every tire, you’ll find one of these speed rating codes: Manufacturers assign speed ratings to tires after extensive performance testing. If you drive a truck, SUV, or crossover, the General Grabber HTS 60 might just be the tire youve been waiting for. Speed rating standards are established by the U.S.

A higher speed rating will generally indicate that you will have better control and handling characteristics.

The speed rating is a measure of what speed the tire can safely maintain for sustained periods of time.

General grabber hts60