FSA

SMR to ACR Cone Spacer, 1-1/8"

The FSA SMR to ACR Cone Spacer is designed to bridge the gap between FSA’s Smart Cable Routing (SMR) and Aerodynamic Cable Routing (ACR) systems. It allows an SMR-compatible stem or setup to work correctly with an ACR headset, ensuring proper bearing preload and clean cable integration on bikes with a 1-1/8″ steerer tube.

This spacer supports FSA’s flexible routing philosophy, where SMR components can be paired with fully integrated ACR headsets, giving builders more options without sacrificing fit, function, or cable management.
Features

• Enables compatibility between SMR stems and ACR headsets
• Designed for 1-1/8″ straight steerer tubes
• Supports both semi-integrated and fully internal cable routing configurations
• Ensures correct bearing preload and headset alignment

Recommended Use

Ideal for modern road and gravel builds using mixed SMR and ACR components, where clean cable routing and proper headset function are required without committing to a fully proprietary cockpit.