The Reserve 30 HD wheel features a 30mm internal width that supports 2.3-2.5" tires, while the thick rim beads stand up to the abuse of tough, rocky, steep trails ridden at elite speed. Off-road rims can see greater single impacts, but nothing beats the full weekend of regular abuse that an EWS race dishes out. - Designed for off-road, aggressive trail riding and racing - Reserve 30 HD rims feature carbon fiber construction with a 4mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - DT Swiss 240 series hubs for reliability and smooth rolling efficiency, including the Ratchet DEG freehub system with 90 points of engagement - Build with DT Swiss Competition spokes and brass nipples - Tubeless tape included