What Tire Numbers Mean

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What Tire Numbers Mean
Related Categories: Speed Rating Letters | What Does The Numbers Mean | Tire Speed Rating | Rating Numbers | Honda Civic Tire Sizes | Wheel Load Rating | 2008 Honda Fit | Speed Rating | What Does Tire Size Mean | Changing Tire Sizes
  • Tire Speed Ratings

  • tire size is, just check the sidewall.) For example, if your tire size is 225/50R16 89S, the letter "S" would represent your tire speed ratings. But what does it mean? Tire speed ratings tell you how fast you can drive on your particular tires. Sounds crazy when you look at the numbers

  • 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: Changing Tire Sizes | Mo | Part Number
  • Aftermarket Wheels

  • …that is often found on vehicles. An upgrade to aftermarket wheels adds an element of style to the vehicle, but what they fail to realize—aftermarket wheels have a number of performance benefits, too. Especially if they're alloy wheels: 1. Reduced unsprung weight compared to steel…

  • Related Products: Wheels | Hubcaps
  • Great tire...or great tire for the money?

  • …about tires like my wife does shoes!) But, you have to remember that there is only one thing between you and the road, between you and the car in front of you, and you and the ditch. So what does this mean? When you look at customer survey results that are posted on our website, those numbers are…

  • Related Products: General Altimax Hp
  • XL Load Tires

  • …undesirable. What does this mean? Let's look at two Max Performance Summer tires in 225/45R17, the Dunlop SP Sport Maxx and the Michelin Pilot Sport PS2. The service description on the Dunlop tire is 94Y and 91Y on the Michelin. The difference in the numbers is a difference in the weight each tire

  • What Does the UTQG Rating Mean?

  • …driven.The tires have only experienced a little tread wear after the 7,200 miles test course, this means the tire manufacturers need to extrapolate their data from the test run and give their interpretation of how long their tire will last in relation to the course monitoring tires. Some of these…

  • UTQG Treadwear Numbers: What Do They Mean?

  • Often, I receive calls about a tire's life and the tire's relationship to its assigned UTQG treadwear indicator. UTQG numbers are assigned to indicate a tires overall level of performance and tread hardness. These numbers beginning at 0 for race products and traveling north of 800 for some…

  • Related Products: Treadwear Rating | 700 | Treadwear Number
  • What Does 'XL' Stand For?

  • tires, XL really means extra load. These tires can use higher air pressure to support more weight than a standard tire of the same size. If you want to see whether your current tires are standard or extra load, you can check the service description on the tire's sidewall. An extra load tire will…

  • What is a coil over?

  • …vehicle a very race-like approach to its suspension. At Tire Rack, we stock a number of coil-over applications. For example, the Bilstein PSS10 is a fully adjustable coil-over system that provides 10 adjustment settings (all of which are numbered so you don't have to count clicks). And the H&R…


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