Rotors that are constructed with expert machining to achieve tight, precise tolerances that eliminate judders, vibration, distortion and assure smoother stops. AISIN Rotors are formulated and engineered to provide high heat dissipation for maximum friction and overall braking performance. High carbon evenly distributed through steel for consistent heat diffusion and better fade. Resistance to high temperature tolerance. Ensures thermal stability and optimized friction characteristics for durability and long-life.