shimano mtb optislick shift cable set The Shimano MTB Optislick Shift Cable Set features Optislick cable routing, which features an electrically coated layer to improve cable routing efficiency. The stainless steel cable is anti-rust, providing you with smooth shifting and durability to last. Features OPTISLICK Improves cable routing efficiency and provides excellent corrosion resistance. Anti-rust Stainless steel cable for anti-rust protection Low friction Cables are formed with curved surface for low friction Mud resistance Sealed end caps to minimize mud contamination Silicone grease SIS SP41 is pre-lubricated with a special silicone grease for light-action shifting | Shimano | Mtb Optislik Shift Cable Set Black