Sport touring radial tire with a stiffer casing to deliver the stiffness and extra stability needed for heavier touring bikes, and the comfort you desire for the long ride Michelin 2CT (Two Compound Technology) with silica-charged rubber compounds provides excellent grip from 23�F to 113�F Specially formulated to provide excellent grip on a wide range of road surfaces, including painted lines and pedestrian crossings, making it easier for you to ride with confidence in virtually all conditions Dependable grip, even in challenging conditions, so riding in the rain should feel safer and more secure, and a lot less stressful Wear resistant compounds make the Michelin Pilot Road 4 street bike tires last up to 20% longer than the Michelin Pilot Road 3 tires The center 20% of the rear tire is a hard rubber compound to withstand aggressive acceleration and braking The remaining 40% of the rear tire on each shoulder is a medium rubber compound to maximize grip on the lean angle Michelin XST+ (