DESIGN MEETS PERFORMANCE. Next to the premium quality steel alloy which is used to give Moto-Master brake discs unsurpassed friction characteristics and durability. DISC & BRAKE PAD CLEANING. The Flame shaped outer perimeter and venting slots overlap to continuously clean the whole brake pad contact surface while hot gasses are immediately evacuated. REDUCED BRAKE PAD WEAR. The Flame design ensure the brake pads are always evenly supported on the rotor surface. This prevents the pads from tilting under high pressure. SUPERIOR DISC FINISH. Specialized laser cutting technologies provide a razor sharp cut which won?t corrode. Disc thickness is parallel within a 0.003mm margin. This eliminates any possible brake lever pulsation while giving unsurpassed rider feedback. Road / Road Racing / Offroad / Rally / Supermoto / ATV Rear Brake Disc Moto Master Nitro