There's no longer a need to sacrifice all-out performance for the sake of all-season grip. Ultra-high performance thrills, all-season reliability and longevity are blended to podium-winning perfection in the Michelin Pilot Sport All Season 4. Michelin Pilot Sport All Season 4 Features From a team with a performance pedigree comes the Michelin Pilot Sport All Season 4. Built on the foundation of the All Season 3 and A/S 3+, the Pilot Sport All Season 4 provides ultimate lasting performance in wet and dry road or track conditions while even creating surprising grip on frigid winter road surfaces. But you don't have to take our word for it: the Michelin Pilot Sport All Season 4 is the first all-season tire Chevrolet picked as on OE option for its launch of the mid-engine Corvette.( Talk about game-changing!) Compared to the previous Pilot Sport All Season, the A/S 4 delivers enhanced all-season performance-including a 10% improvement in snow traction-brought to you by Michelin's Helio+ technology. You must be asking: what is Helio+ Technology? It's an advanced rubber compound that helps the Pilot Sport All Season 4 maintain flexibility, ensuring maximum traction even in freezing conditions so that you can drive your sports car, coupe, convertible or supercar all year long. Michelin also packed its 360 degree variable sipe technology into the PSAS4; this network of interlocking sipes add thousands of extra biting edges to its contact patch for undeniable traction in the wet and light snow. Other performance features of the Pilot Sport All Season 4 include: A sporty asymmetric tread pattern that places more rubber on its outside shoulder for extreme lateral grip and responsive handling in dry conditions. Race-inspired silica-enhanced tread compound helps your vehicle stick to slick road surfaces. Biting edges in its tread grooves take hold of loose snow for controlled starting and stopping in harsh winter conditions. Ultimate performance is great, but it's even better when it lasts. Thanks to its silica-enhanced tread compound and optimized footprint, the Pilot Sport All Season 4 provides exceptional expected tread life for a UHP all-season tire. Tire Specs Tire Treadwear: 540 Tire Traction: AA Tire Temperature: A Tire Section Width: 245 Tire Aspect Ratio: 40 Tire Rim Diameter: 18 Tire Overall Diameter: 25.9" Tire Rim Width Range: 8" - 10" Tire Weight: 26 LBS Tire Tread Depth: 10/32" Tire Load Index: 97 Tire Load Range: XL Tire Max PSI: 50 PSI Tire Speed Rating: Up to 186 mph Tire Sidewall Description: BSW - Black Side Wall