1/2Pcs Bike Frame Internal Housing Damper Foam Sleeve Hose Road Bike Shifter/Brake/Hydraulic Tube Cycling Parts The 1/2Pcs Bike Frame Internal Housing Damper Foam Sleeve is a foam dampening sleeve designed for road bike frames with internal routing. It provides cushioning for internal housing and hoses used by shifters, brakes, and hydraulic tubes inside the frame. The foam sleeve helps reduce vibration, minimize noise, and protect the internal routing components from wear. Key benefits Dampens vibrations inside the frame to improve ride feel on rough roads. Reduces noise and rattling from internal cables and hoses. Protects internal housing and tubing from wear and point contact within the frame. Simple addition to existing internal routing to enhance durability and performance. Key attributes Functionality: internal housing damper sleeve for road bike frame routing Compatibility: designed for shifter, brake, and hydraulic tube routes inside road bike frames Material: foam sleeve Package: 1/2Pcs Purpose: provides cushioning and protection for internal routing components Use cases Case 1: Installing in a road bike frame with internal shifter cables to dampen movement and reduce rattling during rides. Case 2: Placing the foam sleeve around hydraulic hoses routed inside the frame to cushion contact points and extend hose life. Case 3: Replacing worn or missing internal dampers to restore quieter operation and smoother performance on long road tours.