Stan's Freehub Bodies and Parts. Features: Replacement freehub bodies include pawls and springs pre-installed MK3, Comp, and Team wheels all have Durasync freehub bodies. Pro wheels feature the Speedsync freehub bodies Neo hubs with Durasync can be upgraded to Speedsync Durasync freehubs offer simultaneous 6-pawl, 10 degrees, engagement with 3 bearings for axle stability Specifications: Hub Model: Neo Durasync (6-Pawl) Freehub: Campagnolo 10/11/12 Speed Material: Alloy Color: Red