FSA No.55 ACS Integrated Tapered Headset - 1.1/8 - 1.5" - Black Climbing Helmets dry when it's wet

dry when it's wet

Allroad / Gravel

Rebound adjustment at the start of the stroke with default setting Rapid Recovery Air

we re-examined and re-engineered our crankset design

Reach Adjust: Tool-free

FSA No.55 ACS Integrated Tapered Headset - 1.1/8 - 1.5" - Black Climbing Helmets dry when it's wetFSA No. 55 ACS Integrated Tapered Headset The FSA NO. 55 ACR HBS 180 is a premium integrated headset designed for modern road, gravel and mountain bike frames featuring fully internal cable routing. Engineered for seamless cockpit integration, it works with FSA's ACR (Aerodynamic Cable Routing) system to route cables and hoses cleanly through the headset and into the frame for a sleek, aerodynamic finish. ACR Aerodynamic Cable Routing: FSA's ACR