FSA headset 2 (I/I) 3.7mm alloy 1-1/8 to 1.5-OD 55

Semi-integrated head assembly with duralumin cups designed for frames with 1.5" head tube
• top: with inner diameter 49.57mm/outer diameter 55mm
• bottom: with inner diameter 49.57mm/outer diameter 55mm
and a tapered fork post 1-1/8" - 1.5".

The upper bearing FSA TH-873DJ, 36°x45° with angular contact (ACB - Angular Contact Ball bearings) has a high accuracy of operation, which is ensured thanks to an optimized internal structure that allows capturing simultaneously acting radial and axial loads.
Lower ring bearing

The height of the upper cap is 3mm.
Height of the head assembly outside the frame (stack height): 9mm
The package contains the FSA hedgehog for the metal fork post.
Weight 120g.

Product ID: 24252