Together with the Preload Ring (sold separately), this preload pinch bolt is used to adjust bearing preload on M-pulse hubs. Kit contains two pinch bolts. Fits all M-pulse hubs. Not compatible with E-sync, Neo, Neo Ultimate, and 3.30 hubs.
M-pulse hubs offer near instantaneous engagement, a more secure and positive lock when engaged, and very low drag for less rolling resistance.