Yokohama tires are created by the Yokohama Rubber Company, Limited located in Tokyo, Japan. The company is well established, having its start in 1917 and is a well known tire manufacturer worldwide. Those who choose Yokohama tires will find that they should read through their owner’s manual and ensure they have registered their tires. Registration is easily accomplished online and makes certain that you can claim a warranty if needed. Yokohama tires are designed for use with passenger vehicles, SUVs, crossovers, and trucks, performance vehicles, winter driving, and competition racing. By understanding your tires and knowing how to read the data and information located on the tire’s sidewall, you can ensure that you select the best tire for your vehicles as well as choose the best replacement set for your needs.
Yokohama tires place important information that is located on the tire’s sidewall. This information includes the manufacturer’s name, UTQG ratings, the type of material used to construct the tire, the Department of Transportation (DOT) certification number, the tire’s aspect ratio, and speed rating. There are different types of tires and wheels making it important to understand the various sizing systems used to denote the type of tires and wheels originally placed on your vehicle. Determine the size of custom, alloy, or steel wheels to ensure you select the best fitting tires for your vehicle’s needs.
The aspect ratio is also referred to as the tire’s profile or series. Aspect ratio is determined by taking a tire that has been filled to maximum air pressure capacity and then dividing the tire’s height by the width. Determine whether your vehicle will be better served with a lower aspect ratio or profile or a higher profile ratio.
Speed ratings are located at the end of the tire size. You’ll find that there are two numbers followed by a letter, which indicates the speed rating. The numbers directly preceding the speed rating is the load index. Make certain to understand the various speed symbols and know what miles per hour the rating signifies.
The Uniform Tire Quality Grade or UTQG is another important factor to consider. The Uniform Tire Quality Grade (UTQG) is designated by the United States government and is used to determine a tire’s performance in areas such as temperature resistance, traction, and tread wear. The testing is mandatory by the U.S. government and each tire manufacture is responsible for testing.
Temperature resistance determines a tires ability to operate a various speeds to determine how the tires handle heat generation. High speeds, improper tire inflation, such as over inflating or under inflating can result in damage to the tire as these actions cause heat to build up within the tire. There are three temperature resistance grades designated by the letters A, B, and C. The letter A or Resistance Grade A tires indicate that the tires were tested at 115 miles per hour for at least half an hour without any noticeable damage to the tires. Resistance Grade B indicates that the tire maintained proper function while maintaining speeds above 100 miles per hour. Tires with a Resistance Grade C rating indicate that the tire failed to maintain speeds of 100 miles per hour for half an hour. This is the minimum rating that can be given to tires for them to be sold legally.
Traction is a tire’s ability to stop or grip surfaces whether they are wet, slick, icy, off road, asphalt, or concrete. When choosing Yokohama tires, make certain to determine the type of traction the tires get in order to understand how it will perform on various surfaces. Traction is rated or classified in three categories and for testing purposes, Yokohama tires are tested on wet asphalt and concrete. These ratings or grades include Traction Grade A, Traction Grade B, and Traction Grade C.
Traction Grade A indicates that during testing, the tire performed well on both wet asphalt and wet concrete surfaces. A rating of Traction Grade B indicates the tires performed well on one surface and Traction Grade C indicates the tire performed poorly on either one or both surfaces.
Tread wear is determined by how strong or durable the tread is. Standard tread wear is determined with a rating of 100. If a tread wear rating is higher than 100, than that means it maintains its tread wear longer than the standard tire. For example, a tread ware rating of 200 would indicate the tire has twice the tread wear a standard tire has.
By familiarizing yourself with the different ratings and ensuring your ability to read the information on tires, you can make certain you select the best Yokohama tires for your needs.