- 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 4-piece spacer kit and 2x M10 bolts with serrated caps