ACROS AZ-56 Headset Upper Part 1 1/8 Inch - ZS56/28.6

To maximize the compatibility with different fork steerers, bikes and frames, the upper and lower parts of ACROS headsets are being offered separately in a great variety of dimensions. The semi-integrated ACROS AZ-56 Headset Upper Part features the established seal technologies from ACROS and high-end bearings in stainless quality for 1 1/8" or tapered forks and frames with a 56mm inner diameter headtube. Precisely manufactured angular contact bearings made of stainless steel form the heart of the AZ-56 and offer play-free and smooth steering characteristics for a long time. The name ACROS AZ-56 describes the semi integrated Ahead headset for 1 1/8" or tapered forks and frames with a 56mm inner diameter headtube. The S.H.I.S. denotation (see attachment) for the upper part offered here is ZS56/28.6 . Construction type (Ahead/Thread): Ahead Cup skirt length in mm: 7.7mm Material: headset cup: aluminium bearing: stainless steel Weight supplement: manufacturer information