Hayes Rotors and Rotor Bolts. Features: Prime 2-piece rotors are for Prime Pro and Expert brakes only L-series, lightweight one piece rotors V-cut profile steel rotors for optimum weight-to-performance ratio. Increased surface area over previous designs increases power while cutouts and drillings help keep pads clean Rotors includes: (1) 6-bolt/44mmBCD rotor, (1) Torx wrench, and (6) T-25 rotor mounting bolts with thread retaining compound 205g @ 203mm Specs: Model:V-6 Description:rotor kit Size:160mm