ACROS AZ-49 Headset Upper Part 1 1/8 Inch - ZS49/28,6

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-49 Headset Upper Part features the newest seal technologies from ACROS and high-end bearing in stainless quality.
Precisely manufactured angular contact bearings made of stainless steel form the heart of the AZ-49 and offer play-free and smooth steering characteristics for a long time.
The right sealing technology is equally important as the highest quality bearings when it comes to high-end components.

The name ACROS AZ-49 describes the semi integrated (also known as press fit or zero stack) 1 1/8" Ahead headset for frames with a 49mm inner diameter headtube. The S.H.I.S. denotation for the upper part offered here is ZS49/28,6.
Construction type (Ahead/Thread): Ahead
Cup skirt length in mm: 15mm
Material: headset cup: aluminium
bearing: stainless steel
Weight supplement: manufacturer information