ZS56/40

The 40-Series sets the standard for performance durability and value. Drawing from the Premium 110-Series Design the 40-Series incorporates all the features necessary for a durable light-weight long-lasting headset.Technical DescriptionZS44/28.6/H8/K|ZS56/30/H4/KTop TypeZS - Zero Stack CupTop Head Tube Inside Dia.44.00mmStem Clamp Dia.28.6mmTop Stack Height8mmTop Bearing TypeBlack Oxide SealedBottom TypeZS - ZeroStackBottom Head Tube Inside Dia.55.95mmCrown Race Seat Dia.20.015mmCrown Race TypeSteel Face-SealedBottom Stack Height4mmBottom Bearing TypeBlack Oxide SealedMaterial6061Weight97gPart NumberBAA0585K