The Shimano Outer Casing 660mm High-Tech Grey is a high-quality cable housing designed to deliver smooth, reliable performance for your bike’s shifting or braking system. Built to Shimano’s well-known standards, this outer casing helps protect the inner cable from dirt, moisture, and mechanical wear, ensuring consistent operation over time. The 660 mm length is ideal for many common routing applications, such as short runs between frame stops, rear derailleur segments, or sections of brake housing on city, road, or mountain bikes.
With its durable construction and reinforced design, this outer casing resists compression, which helps maintain precise cable tension and crisp, accurate actuation at the lever. The High-Tech Grey finish offers a clean, modern look that blends well with a wide range of frame colors and component styles. Whether you are refreshing a worn-out cable system, building up a new bike, or fine-tuning your cockpit setup, this Shimano outer casing is a dependable choice that supports smooth performance and long-term reliability.