OPTIO STAINLESS STEEL (BRAKE WIRE) - The Legion Optio inner-wire is stretched after the “roping” process, this is to ensure no further stretching takes place during use, meaning 1-time set-up. - Stainless Steel: 19x Strands, Increased environmental protection, Reduced weight. - Slick. - Works for MTB/Road or only MTB. - Length: 1700mm.