Park Tool's PolyLube 1000 polyurea lubricant was developed specifically for bicycle maintenance and repair and can be used with any type of ball bearings threads or press fit applications found on a bicycle including headsets bottom brackets cranks pedals and hubs. PolyLube 1000 repels moisture and has an extremely high shear strength to protect vital parts under extreme conditions.Repels moisture and is compatible with conventional greasesWill not harm carbon fiber