* Lighter, wider, stronger and more flat resistant* Ride Tuned ÛÒ Smoother ride improves tracking, control, and reduces fatigue* Wide hookless bead dissipates impact energy and prevents pinch flats.* 30% increase in impact toughness, 60% more flat resistant* Optimized for 2.3-2.5Û tires* 385g (27.5Û), 405g (29Û)