…P245/40R18 or LT315/70R17. But what does it mean when the tire says "P245/40ZR18"? For that, you need to know a little bit about speed ratings. Speed ratings on tires are expressed in letters and are generally listed along with the load index for a tire after the size, for instance…
T, Z, W...These letters appear on a tire, but what do they mean? Speed ratings can be a little confusing. I get many calls like this one: "I have an 08 BMW 328i and I need a Z-rated tire." To be honest, Z-rated used to mean a lot more than it does now. When speed ratings first came out, Z…
…A tire with a load index equal to that of the Original Equipment tire indicates an equivalent load capacity. A tire with a lower load index than the Original Equipment tire indicates the tire does not equal the load capacity of the original. Typically, the load indexes of the tires used on passenger…
…tires and accept the O.E. Tire Pressure Monitoring System (TPMS) sensors. If you prefer the look a wider tire, both 235/45-18 and 245/40-18 are compatible sizes. The 235/45-18 won't provide enough increased width to make a noticeable difference. Scion TC FAQ: * What does 18x8 ET45 mean? 18x8…
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…rim widths of 1" to 4" possible. Tire Rack's complete, in-house inventory of all 3-piece wheel components means quick turn-around with assembled wheels shipping within 1-2 days of order receipt. Precise wheel assembly is performed at Tire Rack using an exacting process that maintains…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
…Tire Credit Card * Goodyear Credit Card * Explore Special Offers * Research & Advice * Research and Advice This is everything you need to make an informed decision. Videos and more! * Tire Advice * Tire Decision Guide See the tires we recommend for you. * Tire Ratings Charts & Reviews See what other…
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