- Contoured bead design - Improves bead-to-rim fit for a smoother ride - PerFlex sidewall construction - Utilizes a tapered hard rubber insert to help absorb bumps and vibrations - Four wide circumferential grooves - Provide outstanding water channeling ability - Sipes - Enable improved water evacuation and more flexible tread blocks* Increases the life of the tread - Tri-Plex compound - Ensures long life and peace of mind