The new HS2 brake disc is a mountain bike-specific brake disc designed to enhance braking performance while reducing noise and optimizing heat dissipation. Equipped with a new profile for better traction of the brake pads and recessed spokes with a heat-dissipating coating, the HS2 is a more powerful, quieter brake disc with the best heat management in its class. Superior heat management (40°C less than Centerline, according to Garda tests).