Improved sealing to stop dirt ingress and to reduce drag New labyrinth seal has zero drag for incredible freewheeling performance New pawls/spring design to increase longevity, load capacity and reduce drag 108 points of engagement with a new offset 6 pawl freehub design New step down axle design for a stiffer more durable freehub New hub body profile for increased stiffness without adding weight Includes 4piece spacer kit and 2x M10 bolts with serrated caps