The Zeta Wheelset has been completely redesigned to be wider, lighter and laterally stiffer, yet still tough enough to endure gravel road rides and cyclocross races that would chew lesser wheels to pieces. New dedicated disc brake version features two-piece forged hubs and a disc-only OCR rim extrusion.Proprietary Ritchey extrusion balances ride quality and aerodynamicsRear OCRA(R) (Off Center Rim) design reduces wheel dish to balance spoke tension for a stronger, stiffer wheelAlloy Freehub bodyCenterlock disc compatibleConvertible between standard QR and thru-axle (F: 12 or 15mm)