Dura 2 Road Cartridge Inserts, Black Pr

- Top choice for aftermarket upgrades\n- Grooved for water displacement and fit 55mm length holders\n- Dura: exact specification as Shimano pads with Kool Stop's patented plow tip, thinner than Dura 2 pads \n- Dura 2: thicker for longer life, 7.65mm contact for narrower rims, and cut-outs to reduce weight \n- Black: standard compound designed for dry condition riding\n- Salmon: aggressive compound for wet weather conditions\n- Dual: combination of Salmon and Black compounds for more controlled, smoother stopping