…a ride disturbance that will be felt for the first few miles the next time the vehicle is driven. Flat-spotting can be temporary (the tire will round out as driving warms it up) or in the most severe cases, permanent (in which the tire's ride quality is effectively destroyed). A flat-spot's severity…
…wheel or through seats/floor? Tires Do the wheels and tires run true? Now do the wheels and tires run true? Does wheel and tire balance check out? Did this eliminate tire vibration? Did vibration location change? Did vibration location change? Continue with Wheel diagnosis chart. Do the wheels…
…perfectly round. They are all slightly different, just as each wheel can be slightly different. The industry measures these slight variations in 'roundness' as radial run out. The run out of a wheel is fairly basic. They put a gauge on the wheel and measure its slight differences (or run out) in its…
…all-wheel drive and four-wheel drive vehicles perform different duties while accelerating, braking and cornering, tire rotation is important to even out, and maintain equivalent treadwear of all of the vehicle's tires to minimize potential driveline stresses. If the vehicle is equipped with a…
…blend of ride quality, noise comfort, treadwear, handling and year-round traction, even in light snow. While Original Equipment All-Season tires are often repurchased as direct replacements for pairs and sets of worn out Original Equipment tires, they can also be used on other vehicles in axle ...
…being serviced. Additionally DOT-legal competition tires wear out and are replaced much more frequently than normal street tires. These extra tire mountings and vehicle installations can increase wheel fatigue as they wear out the wheel's lug seats and the vehicle's lug nuts/studs or lug bolts/hubs.…
…balance related. The other primary cause of vibrations is that the tire and wheel assembly isn't perfectly round. Face it, if we go out far enough past the decimal point, nothing is perfectly round. This includes your wheels and tires. The problem is when the high spot on the tire, and the high spot…
…are typically backed by their manufacturer's limited warranties for a period of 4 to 6 years from the date of purchase or until the tread wears out, whichever occurs first. All tires sold by Tire Rack (except race and rally tires) have a manufacturers' limited warranty extended to the original…
…even available as all-season tires. Last summer Tire Rack and I had the opportunity to test the low rolling resitant tires. Check out some of the details in "Round and Black Goes Lean and Green." Then look at some of the low rolling resistant tires available today. Grand Touring Summer…
…wintertime traction, you'll want to pick the ones that fulfill their all-season promise. Note: All tires require sufficient tread depth to provide traction in deep, powder snow. As all-season tires wear down, they will eventually be reduced to nibbling at snow rather than taking a bite out of it.
…potholes and ruts in the roads, which are causing many drivers to experience problems with their tires, like sidewall bubbles. If you can see a round bulging area protruding on the sidewall of the tire, this is often referred to as a bubble. The bubble is appearing because air from inside the tire…
…combined uniformity. This simulated road force test helps verify if the assembly is "round" when rolling under load. The GSP9700 Vibration Control System can also measure lateral and radial rim runout (out of roundness or side-to-side movement) to identify and separate wheel runout from tire runout.…
As your Firestone tire dealers, we're constantly on the lookout for new and improved tires from this brand we've come to trust. And so, we'd like to introduce you to the following: Destination ST (Street/Sport Truck All-Season): If a performance pickup, crossover or sport utility vehicle is your…
…combined uniformity. This simulated road force test helps verify if the assembly is "round" when rolling under load. The GSP9700 Vibration Control System can also measure lateral and radial rim runout (out of roundness or side-to-side movement) to identify and separate wheel runout from tire runout.…
…one tire to do it all, and it needs to perform during the summer, as well as cope with winter weather. To find out if the newest tires are single-focus specialists or more well rounded athletes, we went to Sweden...where winter reigns supreme. Read the Full Test Report View Road Manners & Dry/Wet…
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