EBC Organic Rear Brake Pads FA174 This EBC series has now been renamed NAO series or Non Asbestos Organic, although the famous Aramid fiber is still used in conjunction with other high-tech fibers that have come on the market. The world's #1 selling organic disc brake pads. Made with Aramid fibers. Provide excellent stopping power without noise and rotor galling, even on polished rotors. Fingertip control and strong, predictable brake response.