Shimano Switching sleeve box SIS-SP41 4mmx50 50m black for dispenser

The entire length of the outer casing of the OT-SP41 is pre-greased with a special silicone grease to ensure quick and precise shifting performance. With the OT-SP41, the friction of the inner cable is minimized, allowing for a rapid response to actions and making shifting easy and effortless. Additionally, it reduces power loss due to delayed shifting and fatigue from shifting, especially when riding on terrain with many inclines and declines, as well as on long distances.