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Related Categories: What Does The Numbers Mean | Speed Rating Chart | Speed Rating Letters | What Tires Will Fit My Car | What Does Z Mean On The Tires | Z Speed Rating | Lower Speed Rating | T Speed Rating | Z Rated Tires | What Do The Numbers In A Tire Size Mean

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What's in a letter?


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 was thought…

Related Products: Speed Rating Chart | What Does Z Mean On The Tires | Z Speed Rating
 

Tire Test Results : Testing Ultra High Performance Summer Tires


Tire Rack * LOG IN * ORDER TRACKING * MY ACCOUNT * WISH LIST * CART ( 0 Items ) 1-888-541-1777 * Please enter search term here. * * Enter Upgrade Garage * View Saved Vehicles * View Photo Gallery * * Tires * Shop by Vehicle * Shop by Size * Brands * Winter / Snow Tires * Tire Tech * Test Results * Survey…

Related Products: What Is Road Force Balance | 225 45zr17 | Road Force Balance
 

Tire Tech Information - Bridgestone's UNI-T Technology


tires. However, the most important thing about UNI-T isn't what it is...it's what UNI-T does. UNI-T allows tires to offer tuned performance while they roll rounder and last longer. Tuned Performance COCS Computer Optimized Component System It's advanced tire design technology. It optimizes the tire's

Related Products: What Do The Numbers In A Tire Size Mean | Sidewall Strength
 

FAQ - TIRES


…-flat tires without a Tire Pressure Monitoring System (TPMS)? * How can I tell if my tires are directional and properly mounted/rotated? * When are winter / snow tires no longer appropriate for the next season? * How is the tire warranty rating determined? * What does speed rating mean and what is correct…

Related Products: Speed Rating Letters | What Tires Will Fit My Car | What Does The Numbers Mean
 

FAQ - WHEELS


…new wheels? * How do you know what wheel fits my vehicle? * What is the purpose of centering rings? Are they required? * What does offset mean? How does it relate to backspacing? * Why do I need to re-torque the lug hardware on new wheels? * What happens if I dont buy Tire Pressure Monitoring System (TPMS…

Related Products: Wheel Centering Rings | Wheel Torque Chart | Centering Ring
 
What Does the UTQG Rating Mean?

What Does the UTQG Rating Mean?


…shopping for tires the rating of most interest to consumers is the UTQG. However, this is also the rating with the least amount of consistency among manufacturers. It's important to realize that the Department of Transportation does not conduct these tests. The UTQG ratings are assigned by the tire manufacturers…

Related Products: Tread Wear Rating | What Does The Numbers Mean | Mileage Rating
 

How Does Speed Rating Affect My Tire Choice?


How does speed rating affect my tire choice? What does the number and letter mean after the tire size? Q 99 mph 160 km/h Studless and studdable winter / snow tires R 106 mph 170 km/h H.D. light truck tires S 112 mph 180 km/h Family sedans and vans T 118 mph 190 km/h Family sedans and vans H 130 mph 210…

Related Products: Lower Speed Rating | H Speed Rating | Speed Rating
 
Symmetric, Asymmetric, Directional, Unidirectional - What Does This Mean?

Symmetric, Asymmetric, Directional, Unidirectional - What Does This Mean?


…other side of the vehicle, directional tires are to be installed on one side of the vehicle and are intended to be rotated from the front axle to the rear axle. If different tire sizes are used on the front vs. rear axle, the tires become location-specific and tire rotation is prohibited unless remounted…

Related Products: Asymmetric Tire Rotation | Dws Direction | Asymmetrical Tires
 

Tire Tech Information - Firestone's UNI-T Technology


tires. However, the most important thing about UNI-T isn't what it is...it's what UNI-T does. UNI-T allows tires to offer tuned performance while they roll rounder and last longer. Tuned Performance COCS Computer Optimized Component System It's advanced tire design technology. It optimizes the tire's

Related Products: What Does The P Stand For | What Does The Numbers Mean | Sidewall Strength
 

Tire Test Results : Testing High Performance All-Season Tires: Which Tires Can Help Give Your Vehicle Good Handling?


Tire Rack * LOG IN * ORDER TRACKING * MY ACCOUNT * WISH LIST * CART ( 0 Items ) 1-888-541-1777 * Please enter search term here. * * Enter Upgrade Garage * View Saved Vehicles * View Photo Gallery * * Tires * Shop by Vehicle * Shop by Size * Brands * Winter / Snow Tires * Tire Tech * Test Results * Survey…

Related Products: Tire Comparison Chart | Best All Season Tires In Snow | Best Passenger Tires
 

Tire Test Results : Testing the New Michelin Pilot Sport A/S Plus


…: Plus really does mean better than before * Latest Test Rank: 1st (August 2008) * Previous Test Rank: Not previously tested Pirelli P Zero Nero M&S (Ultra High Performance All-Season 225/45R17) * What We Liked: Plush ride quality (for an Ultra High Performance All-Season tire) * What We'd Improve: A…

Related Products: 225-45-r17 | Bridgestone Potenza 225 45r17 | Michelin Pilot Sport A S 3 Review
 
What Comes with My Tire & Wheel Package?

What Comes with My Tire & Wheel Package?


…just spinning in the air. Tire Rack does the mount and balance for free when purchasing a Tire & Wheel Package. We also provide all required hardware for a smooth and trouble free installation once the package arrives. This may include lug nuts or lug bolts if a different size or type is needed. We also…

Related Products: Wheel Centering Rings | Valve Stem | Mount And Balance Cost
 
Related Categories: What Does The Numbers Mean | Speed Rating Chart | Speed Rating Letters | What Tires Will Fit My Car | What Does Z Mean On The Tires | Z Speed Rating | Lower Speed Rating | T Speed Rating | Z Rated Tires | What Do The Numbers In A Tire Size Mean
 
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