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Related Categories: Speed Rating Chart | What Tires Will Fit My Car | What Does Z Mean On The Tires | Lower Speed Rating | Speed-rating-letters | Z Rated | Recommended Tire Pressure | What Size Rim Will Fit My Tire | Directional Tire Rotation | Best Light Truck Tire

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

FAQ - TIRES


…Can I mount non-run-flat tires on my stock wheels even if my vehicle came with run-flat tires as Original Equipment? * How can I tell if my tires are directional and properly mounted/rotated? * How is the tire warranty rating determined? * What does speed rating mean and what is correct for my vehicle?…

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

FAQ - WHEELS


…wheels? * How do you know what wheel fits my vehicle? * What does offset mean? How does it relate to backspacing? * What is the purpose of centering rings? Are they required? * Why do I need to re-torque the lug hardware on new wheels? * What happens if I don't buy Tire Pressure Monitoring System…

Related Products: Lug Nut Torque Specification | Wheel Torque Chart | Lug Nut Size
 

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 | Best V Rated Tire
 
What is Rim Offset and Backspacing? How Do They Affect Fitment?

What is Rim Offset and Backspacing? How Do They Affect Fitment?


…backspacing needs to be measured. What does this all mean to you? Since we have already checked to see what fits your vehicle, all listed wheels have a compatible offset and backspacing specification. If you've lowered your car or you're running an oversized custom fit tire size, a higher offset wheel will…

Related Products: Wheel Offset And Backspacing | What Is Backspacing | Wheel Backspacing
 

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 45r17 | How Old Is Too Old | Bmw 328i Sports Package
 

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: Summer Vs All Season | Lowest Road Noise | Firestone Firehawk Tires Reviews
 

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
 
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: 200 Treadwear | Miles Rating | Utqg 200
 
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 | Pilot Sport Rotation
 

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: Uni-t Aqii | Black And Green Rims
 

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: Best All Season Tire | H Rated Tires Vs V Rated Tires | Performance Rating
 
Related Categories: Speed Rating Chart | What Tires Will Fit My Car | What Does Z Mean On The Tires | Lower Speed Rating | Speed-rating-letters | Z Rated | Recommended Tire Pressure | What Size Rim Will Fit My Tire | Directional Tire Rotation | Best Light Truck Tire
 
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