No.55R 1.5" ACR Headset, Black

Designed for integrated cable routing and precise steering control in modern high-performance road bikes.

The FSA No.55R 1.5" ACR Headset in Black is a premium headset specifically engineered for frames featuring FSA's ACR (Aerodynamic Cable Routing) system. This advanced headset allows for all cables, wires, and hoses to be routed internally through the headset and into the frame and fork, resulting in an exceptionally clean, aerodynamic, and uncluttered cockpit. Beyond its aesthetic benefits, the No.55R provides smooth, precise steering thanks to its high-quality angular contact bearings, ensuring reliable performance for competitive road cycling and demanding rides.

• ACR (Aerodynamic Cable Routing) system for fully integrated cable, wire, and hose routing.
• 1.5" lower bearing provides robust stability and precise steering.
• High-quality angular contact bearings for smooth rotation and durability.
• Black finish for a sleek, integrated look on compatible frames.
• Essential for frames designed around FSA's ACR system for optimal aerodynamics and aesthetics.