The FSA Orbit CF 45x45 is a high-quality integrated headset bearing designed for frames that do not require pressed-in cups. These bearings seat directly into the head tube, providing a clean and efficient interface. This specific 45/45 degree angular contact configuration is standard for Campagnolo-compatible integrated systems, ensuring smooth steering and long-term durability.

Precision-engineered from hardened steel, this 1-1/8" cartridge bearing features an outer diameter of 41.8mm and an inner diameter of 30.5mm. Its sealed design effectively keeps out road grime and moisture, maintaining a consistent feel even in adverse conditions. It is a reliable replacement part for road, BMX, or mountain bikes utilizing the popular Italian-style integrated headset standard.

Quick Facts

Feature	Specification
Bearing Angle	45° / 45° (Campagnolo Compatible)
Outer Diameter (O.D.)	41.8mm
Inner Diameter (I.D.)	30.5mm
Thickness	8mm
S.H.I.S. Standard	IS42 / 28.6
Manufacturer Part #	160-1647