The 4x4 Diamaris is Michelin's Street/Sport Truck Summer tire that provides their highest level of wet and dry traction for luxury sport utility vehicles. Used as original equipment on the BMW X5 4.6is, Porsche Cayenne S and Cayenne Turbo, the 4x4 Diamaris is also available in the large rim diameter sizes appropriate for other light trucks. The Diamaris 4x4 is also backed by a 25,000 mile treadlife warranty. The 4x4 Diamaris features a wet-weather tread compound into an asymmetric tread design that features large outer shoulder blocks contributing to steering response and cornering confidence. A continuous center rib enhances steering precision and high-speed stability while two wide, circumferential and multiple lateral grooves channel water to reduce the possibility of hydroplaning.