You can find original FSA components, accessories, and replacement parts atEscapa. TheFSA Orbit40-ACB Integrated Headset for 1-1/8"–1.5" tapered forks is made of aluminum and is suitable for city, MTB, or road bikes.
Angle: 1' 1/8: 45°/45° - 1' 1/2: 36°/45°
Diameter: 1' 1/8: 28x42x6mm – 1' 1/2: 39x52x8mm
Total height: 16.3 mm
Headset tube: 1' 1/8 – 1' 1/2