Provides unique progression of brake power Self-ventilating design for stable power at high temperatures at very high pad-disk contact pressure Provides highest braking grip with light weight for better handling Alternating grooves on the two surfaces of the disk create a self-ventilation mechanism; mud and dirt are also easily removed from braking surface Outer and inner diameter of the disk have a non-round design that enables better radial expansion of the rotor under extreme heat conditions Moreover piercing holes are replaced by edges specifically designed to grow brake pad regeneration process Directional design; verify that it mounts correctly by checking the rotational direction marked on the carrier. ROTOR BRAKE BATFLY BY101L