ZG 1000 Concours 1000 94-05 FRONT - L / R. - Complete set of Brake Discs Rotors (No Bolts/Instructions). - 2 Pieces x Front Brake Discs Rotors. - Arashi brake rotors are constructed from 420 stainless steel, with CNC 6061-T6 Aluminum alloy in the center hub for lesser weight.