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Related Categories: Can I Change My Tire Size | What Tires Will Fit My Car | Speed Rating Letters | Rating Chart | Speed Rating Chart | Uni-t Aqii | What Does Z Mean On The Tires | Z Speed Rating | Lower Speed Rating | Z Rated Tires

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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 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: Uni-t Aqii | Sidewall Crack | Bridgestone Vs Michelin
 

FAQ - TIRES


tires as Original Equipment? * Why cant I use run-flat tires without a Tire Pressure Monitoring System (TPMS)? * How is the tire warranty rating determined? * When are winter / snow tires no longer appropriate for the next season? * Why cant I use only two winter tires? * What does speed rating mean

Related Products: Recommended Tire Pressure | What Size Rim Will Fit My Tire | What Tires Will Fit My Car
 

FAQ - WHEELS


…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 are lug centric wheels? * What happens if I dont buy Tire Pressure Monitoring…

Related Products: Wheel Centering Rings | What Is Backspacing | Offset
 

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 | Speed Rating Chart | Noise Rating
 

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
 
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 | Unidirectional Tires | Dws Direction
 
What Does the UTQG Rating Mean?

What Does the UTQG Rating Mean?


tire is run in a vehicle convey along with standardized course monitoring tires. Vehicles repeatedly run a prescribed 400-mile test loop in Texas for a total of 7,200 miles. The vehicles can have its alignment set, air pressure checked and tires rotated every 800 miles. Test tire's and monitoring tire's

Related Products: Treadwear Rating 200 | Utqg | Treadwear Rating
 

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: Run Flat Tires For Bmw 328i | Best Performance All Season Tire | Tire Comparison Chart
 

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 | Michelin Pilot Sport A S 3 Review | Michelin-pilot Sport A S
 

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: 225 45zr17 | High Mileage Tires | Yokohama S Drive Tire 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: Free Mounting And Balancing | Centering Ring | Wheel Centering Rings
 
Related Categories: Can I Change My Tire Size | What Tires Will Fit My Car | Speed Rating Letters | Rating Chart | Speed Rating Chart | Uni-t Aqii | What Does Z Mean On The Tires | Z Speed Rating | Lower Speed Rating | Z Rated Tires
 
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