FORD FOCUS 2016 – 2018 RS, Rear Disc. 2x Rear Disc Brake Rotors -R-800394. Disc Brake Rotors Set. Our Products are manufactured in ISO 9000 / 9001 / 9002 certified facilities. Manufactured in ISO 9000 / ISO 9001 / ISO 9002 certified facilities gives the fit, performance Reliability and durability of OE.