- Solid center rib designed for high-speed stability - V-shaped unidirectional grooves for improved handling on dry and wet roads - Multiple snow-biting grooves and optimal siping design for great traction on snowy surfaces - 4 high-void, circumferential main grooves expel water for enhanced wet traction - 5-pitch tread blocks and 2-in-1 groove designs minimize noise for a quiet, comfortable ride - UTQG 420 AA A - 6 year warranty