shimano optislick derailleur cable and housing set black, one size shimano overhaul the old, worn-out shift cables and housing on your road bike with the shimano optislick derailleur cable and housing set. this set comes with everything you need to replace your front and rear shift cables and housing on your road bike. stainless steel shift cables are highly corrosion-resistant, with an optislick coating for smoother shifts and greater longevity. sealed end caps keep out mud and grit encountered on the trail. shimano's sp41 cable housing uses a special silicone grease for lighter shifting actuation. please note, the included shift cables attach to both sram and shimano derailleurs.