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Ensures smooth and friction-free shifting Shimano Ref number: SIS-SP41 › See more product details; Product description Shimano -Factory grease applied to cables to keep them corrosion-free and move freely in the housing.; Product description Shimano -Factory grease applied to cables to keep them corrosion-free and move freely in the housing.; Shimano -Factory grease applied to cables to keep them corrosion-free and move freely in the housing.