The Industry Nine Classic Trail S Boost Wheelset is an aggressive XC to trail aluminum wheelset that brings us much of the same performance as the pricier carbon models but without the price tag. The tubeless-ready aluminum rim is fitted with a classic J-Bend spokes for easy serviceability, while the renowned Hydra hub gives us technical performance all over the mountain. The Industry Nine Classic Trail S Boost Wheelset has a 27mm internal diameter that's perfect for fitting mountain tires 2. 2 - 2. 4 inches wide.