The ENVE M630 Industry Nine Hydra 27. 5in Boost Wheelset is built to be lightweight, fast, and ultra-responsive. The 100% unidirectional carbon layup perfectly balances stiffness and compliance, delivering a lively ride feel all over the trail. The wide hookless bead makes pinch flats a thing of the past, and Industry Nine Hydra hubs deliver complete control on technical climbs and fast descents thanks to the 0. 52 engagement.