What Tire Numbers Mean

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What Tire Numbers Mean
Related Categories: Changing Tire Sizes | Mercedes Mo | Speed Rating Letters | 89s | What Does The Numbers Mean | Part Number | Blackwall | Sidewall Style | Mo | Tire Speed Rating
  • 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

  • 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…

  • 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…

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  • 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…

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  • 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…


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