What Is Load Index

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What Is Load Index
Related Categories: Load Index | Load Index Chart | Tire Load Index | Service Description | 121 Load Index
  • What Does "ZR" Mean?

  • …listed along with the load index for a tire after the size, for instance 245/40R18 93H. 93 is a load index and the "H" is the speed rating. Together, the load index and speed rating make up what is called the service description. Anything rated for more than 149 mph is considered a Z-speed…

  • Why is the Same Tire Listed Twice?

  • …Tour has a 102T service description. A load index of 100 equals 1,764 lbs. of load carry capacity and 102 carries 1,874 lbs. The Original Equipment tire has a treadwear rating of 720 compared to a 600 rating on the "normal" Latitude Tour. Each tire is offered with a 65,000 mile treadwear…

  • One of These Things is Not Like the Other!

  • …identical tires, but they have two different prices. What in the world is going on with that? Tire manufacturers will give different part numbers to the same model of tires if the tires have a different sidewall styling, speed rating, load index or O.E. designation. These differences in the tires…

  • Related Products: Blackwall | Part Number | Sidewall Style
  • Tires As Shoes: Part One -- What Size Do I Have?

  • …as a Ford F250, you will also require a tire with a higher load index, or if you have a vehicle such as a Chevrolet Corvette, your car may have come with light load tires and going to a tire with a higher load index would make the vehicle ride firm. Next Post: Part Two -- What is the Tire's Purpose?

  • Related Products: Load Index | Custom Size | F250
  • Speed Rating for Late Model Honda Accord

  • …their are many installers who have a policy not to install anything below what the car came equipped with from Honda. To gain a better understanding of speed ratings, take a look at "How to Read Speed Rating, Load Index & Service Descriptions." And, if you're considering H-rated tires…

  • Related Products: Honda Accord | Honda Accord Tires
  • Understanding Speed Ratings

  • …245/45ZR17 or the "H" in 205/55R16 89H. This letter is the speed rating of the tire. Tires are tested in laboratory conditions under load by tire manufacturers to determine the maximum speed capability of the tire. Shown below is what the speed rating letter equates to in MPH. L 75 mph 120…

  • Related Products: 91w | R Speed Rating | H Rating

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