The FSA Orbit CF-40 Carbon Integrated Tapered Headset is compatible with tapered fork steer tubes 1.5" to 1 1/8", and for tapered 46mm/56mm OD headtubes. Carbon Fiber top cover, differential Headtube 45°/ 45° ACB Upper Industrial bearings. The FSA Orbit CF-40 Carbon Integrated Tapered headset lowers are also compatible with carbon or alloy headtubes.
Stack Height: (15.5mm/0.8mm=16.3mm)
Steerer Diameter: 1 1/8" to 1.5" Tapered
MFG. Part #: 121-0466A