Shimano roadmtb ptfe sil tec inner gear cableptfe coated stainless steel inner gear cable for the ultimate in smooth shifting performance designed to complement the top of the range shimano dura ace and xtr groupsets featuresstainless steel precision ground round ptfe coated inner wires offer smooth low friction shift action with increased service life due to its anti corrosion naturesuitable for front or rear mechs just cut to fituse with sp41 gear cable outer1 2mm x 2100mma 2 year warrant