EBC USR Series Sport Slotted Rotor EBC USR Series Sport Slotted Rotor; Front; 12.3 in. Dia.; Set of Two; BMW X1 SDRIVE28I XDRIVE28I 2013 2014 2015 2L N20B20A (1997cc) GAS EBC Brakes EBC Brakes EBC USR Series Sport Slotted Rotor - USR7488 USR7488 Disc Brake Rotors