Internal Housing Damper Reduces vibrations and noise from the inner tube inside the frame, resulting in quieter operation. Minimizes friction between the inner tube and the frame, helping to protect the frame's internals over time. Improves overall ride smoothness and longevity by dampening unwanted movement inside the frame. Cable Housing Material Spongelike cable housing that is wear resistant and soft. elasticity and flexible performance for reliable use over long periods. Designed to maintain performance while accommodating routing and bending requirements. Package Includes Frame Internal Cable Housing included. The cable housing can be used as it is to fit your bike cable needs. Wide Applications Compatible with mountain bikes and road bikes. Suitable for shifting cables, hydraulic lines, and brake lines. Can be used for various cable routing configurations and bike setups. Use Scenarios MTB frame upgrade: Install the internal housing to reduce frame vibrations and noise on rough trails, extending frame life and improving ride quietness. Road bike cable routing: Use the cable housing as it is to fit shifting and braking cables, maintaining smooth operation and reducing cable wear inside the frame. Hydraulic and brake line routing: Adapt the internal housing to accommodate hydraulic or brake line runs on different bike models, ensuring protected, flexible, longlasting performance.