Refresh your cables for a smooth precise shifting experience as your cables corrode and wear they can become stiff gritty and less accurate with a flexible corrosion resistant stainless steel construction lifeline essential cable inners provide a fast responsive action to help you get the best from your groupset tools needed for installationcable cutters crimps56mm allen keyst25 torx campagnolo174 newer record174 super record174 derailleurs depending on your gear and gro