Cypress, Calif. - May 7, 2013 - Nitto Tire, a leading innovator in high performance tires, announces the launch of the NT421Q, its new all-season UHP tire line for the CUV and SUV replacement tire market. The product is now available in 31 sizes (with three more coming soon) and is designed to offer a versatile product line for dealers to accommodate a variety of popular vehicle fitments.