FSA

NO. 55R Headset, 1.5" Diameter, ACR Standard, Includes TH-894 and CR-1 Components – Alloy

The FSA NO. 55R Headset brings modern integration and precision steering to the forefront of any custom build. Designed around the ACR (Aerodynamic Cable Routing) system, this 1.5” headset allows fully internal cable routing for a sleek, uncluttered cockpit and improved aerodynamics—perfect for riders who value both clean aesthetics and performance efficiency.

Built to handle the demands of today’s road and mountain frames, the NO. 55R combines lightweight alloy construction with the reliable smoothness riders expect from FSA. Whether it’s for a high-end gravel grinder, an aero road bike, or a modern trail machine, this headset keeps steering responsive and precise while maintaining a minimalist look.

• ACR Standard: Supports fully integrated cable routing for a clean, aerodynamic setup.
• Durable Alloy Construction: Lightweight and strong for consistent performance.
• Includes TH-894 and CR-1 Components: Complete package for easy installation and compatibility.
• 1.5” Diameter: Built for stability and precise control across a range of modern frames.
• Ideal for Road, Gravel, and MTB: Versatile performance for multiple bike disciplines.

The FSA NO. 55R Headset is the finishing touch that brings cutting-edge integration, dependable handling, and a refined look to any premium bike build.