Shimano HG style freehub for Campagnolo hubs and wheels with oversized axles. Specifications: Compatibility: Campagnolo Bullet Ultra, Hyperon, Bora, Eurus, Neutron, Shamal, Zonda, 2013 and later Scirocco H35, 2014 and later Vento and Khamsin wheels, Fulcrum Red Wind XLR, Racing Speed, Light, Zero, 1, 3, Quattro and 2013 and later Racing 5 and 7 wheels, Campagnolo Record and pre-2007 Centaur and Daytona hubs Freehub Body: Shimano HG