Genuine FSA Orbit C-40/48-CF ACB differential OD head tube headset.
Features
- 1.1/8″, 45° x 45° ACB upper
- 1.5″ 36° x 45° ACB lower
- Compatible with Carbon or Alloy head tubes
- For tapered 48mm/56mm OF head tube
- For 1.1/8″ to 1.5″ tapered fork
- Carbon fibre top cover
- Stainless crown race
Specifications
- Upper: Campy Angular Contact Bearing
- Lower: 1.5″ 36° x 45° Angular Contact Bearing
- Stack Height: 15.35 + 0.8 = 16.3mm



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