This is a Dura-Ace road bike shift cable set from Shimano. Features Polymer-coated, stainless steel inner cable reduces the sliding resistance to achieve lighter and quicker operation and is rust resistant Sealed end caps to minimize dirt contamination Low friction polymer material on the cable may cause slippage at the cable fixing bolt after initial pre-stretch for the cable is performed OT-SP41 Housing is pre-lubricated with silicone grease Specifications: Cable Type: Standard Shifter (Shimano/SRAM) Cable Diameter: 1.2mm Material: Stainless Steel Coating: Polymer Housing Included: Yes (4mm) Color: Black Includes: (1) 1700mm Housing (4mm) (1) 2100mm Shift Cable (1.2mm) (1) 1800mm Shift Cable (1.2mm) Ferrules, Crimps, and Hardware