Run-flat tires have become standard equipment on many vehicles. Some cars of the same general model will have certain versions that come with run-flats while others do not. It can certainly get confusing for people who aren't familiar with different vehicle and tire models.
All run-flat tires have a designation on the sidewall that indicates they are not standard tires. For example, the Bridgestone Potenza RE960AS Pole Position has a run-flat and non-run-flat model in certain sizes. The run-flat model has the letters "RFT" following the name. You can see this by clicking on the Bridgestone Potenza RE960AS Pole Position RFT photo below.
Different tire companies use different designations for run-flat tires. Continental uses "SSR", Goodyear uses "RunOnFlat" or "EMT", while Michelin designates their run-flat tires with "ZP."
Many customers are convinced they have run-flat tires because their vehicle didn't come with a spare. This isn't always the case, so be sure to check your tires' sidewall to confirm. Now that you've determined if you have run-flat tires or not, you can determine which option you would prefer. To help you make a decision, read "Deciding Between Run-Flat and Non-Run-Flat Tires."
With spring h
ere, many drivers are getting ready to purchase tires for roadrace or autocross use.
For those who want tires they'll use mostly on the street, but want to do some racing, the Extreme Performance Summer category offers some good options. Tires in this performance category won't give you the fastest lap times compared to competition tires, however they are a good choice for the less serious racer. If this sounds like what you're looking for, consider the following options:
For the more serious race enthusiast, take a look at our selection of Track & Competition DOT tires. These are options that shouldn't be driven on the street and are for the track only. If you are looking for a tire for your roadrace event, consider the Hoosier R6. If autocross is your event, take a look at the A6 from Hoosier.
Hoosier's set-up process to maximize treadwear and handling is more involved than other tires, however their tires are hard to beat! For those that want a good competition tire at a lower price point, the Hankook Ventus Z214 is available in both a roadrace and autocross compound.
Will your new set of tires need to be saved? If so, how far should they be shaved? Read "Shaving Tires for Autocross / Track Use / Competition" to see how this service can help you maximize your tire's performance capabilities early in their life.
Many vehicles come equipped with run-flat tires from the manufacturer. Our sales specialists receive many calls from drivers asking if they can replace th
eir run-flat tires with non-run-flat options. There are a few pros and cons when it comes to changing to a non-run-flat tire.
Pros:
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Conventional tires are typically less expensive
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Better ride quality
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Longer lasting
Cons:
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Many vehicles don't have a spare, therefore you won't be able to drive when you get a flat
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When leasing a vehicle, many companies often require vehicles sold with run-flats be returned with them
Switching to conventional tires will not negatively affect the vehicle and will fit on Original Equipment wheels. Also, for those that don't have a spare, take a look at the Continental ContiComfortKit that seals and inflates tire punctures. It's capable of comfortably sealing typical tire punctures that make it possible for you to complete your drive home, to work, an important appointment or a tire repair facility. The ContiComfortKit combines a powerful, high-volume, 12-volt air compressor, integral pressure gauge and a latex liquid sealant packaged in a compact, lightweight unit that's easy to store in your vehicle.
I have experienced first-hand the differences between non-run-flat tires and run-flats. The BMW I owned came with 18" wheels and Bridgestone Potenza RE050A RFT tires and I switched to 19" wheels and the Sumitomo HTR Z III. Normally, increasing the wheel diameter has a negative impact on ride quality, however I thought the conventional tires on larger sized wheels actually rode a little better than the 18" run-flats.
To find the tire that works best for your car, shop by vehicle.
Porsche vehicles are known throughout the auto industry as one of the most highly engineered driving machines. Their engineers meticulously analyze every aspect of the vehicle's execution from weight savings and balance, all the way down to how the tires perform.
Porsche vehicles from 911 Carreras to Cayennes have tires that are specifically engineered for the vehicle through collaboration between tire manufacturers and Porsche themselves. Original Equipment Porsche tires are commonly referred to as N-Spec tires because the sidewall of the tire will be branded N0, N1, N2 or N3 and so on. The "N" is the designation for Porsche approved tires and the corresponding number identifies the version, with the higher number assigned to newer generations of the tire.
For instance, if you shop by vehicle and look at the 2011 Porsche 911 Carrera 4S Coupe, when you choose "View Original Equipment Tires" the website will display all of the tires that may have come on the vehicle as Original Equipment from Porsche. You will find on the list the Michelin Pilot Sport PS2 N2, Pirelli P Zero N2, Bridgestone Potenza RE050A N0, and Bridgestone Potenza RE050A N1.
For more information, read "Porsche N-Specification Tire Approvals."
I am often challenged by customers to provide country of origin information on their tire of interest. I say challenged because, well, it can be challenging. While Tire Rack makes every effort to track this information, all of the major tire manufacturers take the view that we are in a global economy. As such, we have found the same tire in the same size can move around from various production facilities.
Although regularly updated, the country of origin for any tire may vary from the country shown on our site. Unfortunately, we cannot accommodate requests for tires with a specific country of origin. You can view country of origin information under the "Specs" tab of each tire. For example, you can view the information for the Bridgestone Potenza RE970AS Pole Position here. Another example can be found with the Continental PureContact with EcoPlus Technology.
For more information, read "Tire Specs Explained: Country of Origin."
1999 Honda Accord Coupe LX 4cyl
