FSA Orbit C40 Lower Headset IS52/40

The FSA Premium Orbit C40 ACB Lower Drop-In headset is designed for tapered 1-1/8" to 1-1/2" steerers using the IS52/40 integrated standard. It features sealed 36°x45° stainless micro angular contact bearings for smooth rotation, stiffness, and long-term durability. The 7075-T6 aluminium crown race ensures a precise, secure fit and excellent wear resistance. Suitable for frames with a 47 mm lower headtube inner diameter.

Specifications
Model: FSA Orbit C40 ACB – No.42/ACB-A
Type: Integrated lower headset – Drop-in
Standard: IS52/40
Steerer Compatibility: Tapered 1-1/8" to 1-1/2"
Bearing Type: Sealed stainless 36°x45° micro ACB
Crown Race Material: 7075-T6 aluminium
Frame Compatibility: 47 mm lower headtube inner diameter