![]() 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. A computer-optimized, and road-tested, tread pattern offers the traction needed to handle snow, ice, and wet conditions. This specific set of tires comes in a 235/75R15 configuration with a S. above 186 mph, a Z rating must appear in the size designation, including a Y speed symbol in brackets. Drive with confidence with these Goodyear Wrangler Trailrunner AT All Terrain tires. 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. A Closer Look: The TrailRunner AT features a rugged all-season tread pattern with saw-tooth block edges for year-round traction, on and off the road. Tires with a Q speed rating can safely sustain speeds of up to 99 miles per hour. The Wrangler TrailRunner AT is Goodyears On-/Off-Road All-Terrain light truck tire developed for pickup truck and sport utility vehicle drivers looking fo. The Wrangler TrailRunner AT delivers a combination of dependable on- and off-road performance. On the sidewall of every tire, you’ll find one of these speed rating codes: This can be very important in many driving situations. These sipes are also useful in cleaning mud and debris off the roads surface. Manufacturers assign speed ratings to tires after extensive performance testing. Goodyear Wrangler TrailRunner AT Goodyears 235/75R15 Trailrunner AT tire is an all-season tire that can grip the road in both wet and dry conditions. 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.
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