We've been helping people find the right tires, wheels and performance parts since 1979. If you're looking for the best and most accurate information on all things tires, you've come to the right place.
A tire's most important job is to carry the load required of it, and the load range/ply rating branded on the tire's sidewall indicates how much load the tire is designed to carry (at a specific pressure). Whenever changing tire sizes or from one tire type to another, it's important to ensure...
A load index is an assigned numerical value that signifies a tire's maximum load carrying capacity. They're useful to help compare load carrying capacity of different-sized tires, and as you might expect, the higher the tire's load index number, the greater its load carrying capacity. Using the...
A warranty is a manufacturer's assurance of quality that defines the period of time that they will repair or replace products that show signs of defects due to materials or workmanship. While most consumer goods are backed for their first 30, 60 or 90 days of use or up to one year from the date...
To diagnose a vibration problem, view The Vibration Diagnosis Flow Chart. Download The Vibration Diagnosis Flow Chart (PDF) If you need to download a copy of Adobe's Acrobat Reader it's available free from Adobe for a variety of computer platforms.
The term "tramlining" is being used to describe when directional control is disrupted by the vehicle's tendency to follow the longitudinal ruts and/or grooves in the road. Its name could be compared to the tram or trolley driver who does not steer because his vehicle follows the path...
While today's P-metric passenger tire sizes have existed since the early 1980s, restoring classic muscle cars and pony cars has kept yesterday's numeric and alpha numeric tires from disappearing. This chart has been developed to help you determine their equivalent Euro-metric and P-metric tire...
Shop by Vehicle for Tire Pressure Monitoring System (TPMS) Sensors Have you ever seen a vehicle with one or more tires that appear noticeably low on tire pressure? Didn't you want to warn the driver of the situation before that slight inconvenience became a calamity? What if the vehicle with...
Do you ever feel a ride disturbance or shimmy during the first few miles of driving after your vehicle has been parked for a few days, weeks or months? Then, after you drive a couple of miles, the ride smooths out and feels OK. This condition is often called flat-spotting because it is used to...
Using the Hunter TC3500 mounting machine, optimal matching of the tire alignment relative to the wheel can be done with higher accuracy and help to eliminate vibration problems. The Hunter GSP9700 Road Force measurement balancer road tests the mounted tire and wheel to effectively measure...
Why do we change our tires and wheels? Aside from necessity, most of us do it for performance, comfort and style. But to be sure our tires are performing properly and that we're rolling comfortably and in style, we'll need to correctly install our new tires and wheels. Here's a few tips from us...
Tire Rack's Tire & Wheel Owner's Manual contains tips on installation and care. Download the PDF If you need to download a copy of Adobe's Acrobat Reader it's available free from Adobe for a variety of computer platforms.
Since heat and exposure to the elements are the important factors that influence a tire's aging process, drivers can prolong their tire's life by minimizing their impact. Here are some tips for storing tires that will not be used continuously. Don't store a vehicle with weight on its tires...
Installing tires that are larger or smaller than what came O.E. (original equipment) is often an attractive way to enhance performance or style. However, most vehicles' speedometers measure speed based on tire revolutions - calculated from the original tires' size. So, changing the tires'...
In addition to the tire's brand and line names (tire model), there is a lot of information provided by the manufacturer on the sidewalls of the tires they produce. Some of the branded information provides the tire's basic dimensions and identifies the week it was produced. Other branding lists...
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