The Shimano Tube Liner is a practical cable accessory designed to ensure a cleaner and more protected internal cable routing system. It helps reduce friction and wear by preventing direct contact between the inner cable and the bike frame. Versatile Application for Brake and Shift Cables: Suitable for both shift and brake inner cables, this liner is ideal for modern road and mountain bikes with internal cable routing systems. It simplifies cable installation while also enhancing longevity and shifting performance. 1800mm Length for Flexible Usage: With a total length of 1800mm, the liner provides ample coverage for full-length internal routing. It can be trimmed to fit your specific cable run requirements, offering flexibility across different bike geometries. Reliable Shimano Quality: As a genuine Shimano accessory, the tube liner maintains the brand's high standard of durability and performance. It’s built to withstand daily use while preserving your cable integrity in tough riding conditions. Whether you're building a new bike or maintaining an existing one, the Shimano Tube Liner ensures a neat, efficient and reliable internal cable system that performs smoothly and looks professional.