Kool-Stop Dura-Ace/Ultegra Road Cartridge Replacement Brake Pads Pair Black Rigid Seatposts - Proprietary blend ideal for

- Proprietary blend ideal for ceramic and precision ground bearings in hubs

return spring

- Special topics such as tool selection

Manufacturer Part Number: GP018BKB

Kool-Stop Dura-Ace/Ultegra Road Cartridge Replacement Brake Pads Pair Black Rigid Seatposts - Proprietary blend ideal forTop choice for aftermarket upgrades Grooved for water displacement and fit 55mm length holders Dura: exact specification as Shimano pads with Kool Stop's patented plow tip, thinner than Dura 2 pads Dura 2: thicker for longer life, 7. 65mm contact for narrower rims, and cut outs to reduce weight Black: standard compound designed for dry condition riding Salmon: aggressive compound for wet weather conditions Dual: combination of Salmon and Black