The Industry Nine Classic Trail S Carbon Boost Wheelset is an aggressive XC to trail carbon wheelset that offers us lightweight, responsive performance on the trail. The carbon rim is tubeless-ready and has classic J-Bend spokes for easy serviceability. At the same time, the renowned Hydra hub ensures technical performance all over the mountain with its 690 points of engagement. The Industry Nine Classic Trail S Carbon Boost Wheelset has a 28mm internal diameter that's perfect for fitting mountain tires 2. 2 - 2. 5 inches wide.