Upper cup/Bearing outside diameter+ Lower cup/Bearing outside diameter + Fork tube    

("44" for OD ø44,"T" for Tapered Tube fork)  

ZS44/28.6

EC44/40

44mm frame is designed for straight tube, but use this headset, you can install tapered Tube fork on 44mm frame.

MATERIAL: CNC MACHINED AL6061 T6

SEALD BEARING

Package included: 1 x CNC Bicycle  Headset