FSA Headset No.5 R 1.5"/ACR w/TH-894-1 - Internal Cable Routing Has Never Been Easier!
An innovative, fully integrated aluminum headset for tapered 1.5" - 1 1/8" steerers. It features a top cover and a high-quality aluminum cone. The upper bearing is 1 1/8" - 36°/45° ACB (Cane Creek compatible), and the lower bearing is 1.5" - grooved ball bearing. The FSA No. 55R headset has the following mounting dimensions: inner/outer 52/56 mm. An ACR-compatible frame is required.
Aero Cable Routing System
The ACR system, a fully integrated aerodynamic cable routing solution that routes all cables, wires, and hoses internally, is available for FSA and VISION’s top-of-the-line handlebars. This innovative, patent-pending system is unique to FSA and VISION and combines their expertise in headset and cockpit development and manufacturing, along with FSA/Vision's history in aerodynamic development and design. The result is a clean, integrated, and aerodynamic cable routing solution for frame and bike brands.
The core of the ACR system is built around the handlebars, headset, and stem, allowing brands a simple "plug-in" solution for clean and easy cable routing for their frames. By using standard headset dimensions, the system maintains frame strength and, by routing cables through the headset, safely preserves the round steering column.