FSA headset NO.55R-1 6.1mm alloy 1-1/8 to 1.5/R-OD 61

Semi-integrated headset with aluminum CNC machined cups designed for frames with a head tube
• top: with inner diameter 55mm/outer diameter 61mm
• bottom: with inner diameter 55mm/outer diameter 61mm
and a 1-1/8" fork steerer.

FSA TH-073E, 36°x45° Angular Contact Ball bearings (ACB) have high running accuracy, which is ensured by an optimized internal design that allows for simultaneous radial and axial load absorption.

Top cap height 5mm.
Stack height outside the frame: 11mm
The package includes an FSA hedgehog for the metal fork stem.
Weight 100g.

Product ID: 24255