Maxxis Padrone Dual Compound SS Tubeless Ready Folding Bead 170TPI Bicycle Tire High performance tubeless road tire combines Maxxis Silkworm puncture protection with a high strength carbon fiber bead DC - Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners SS - SilkShield offers bead to bead puncture protection covering the tread as well as the sidewalls TR - Tubeless Ready - sealant required Model Number