2-piece brake rotor with aluminium core for better cooling.
The 1-piece disc is Formula's standard for all ride styles and has the same aggressive braking surface as the 2-piece rotor. The "ventilation design" increases lateral stiffness by 40%, reducing vibration and noise.
The 2-piece brake discs feature an aluminum carrier that does more than just look good. The aluminium core acts as a heat sink and draws heat away from the caliper. This increases braking performance by cooling the brake pads and brake fluid. The carrier also increases lateral stiffness and allows the expansion and contraction of the steel braking surface to be directed 90 degrees away from the hub.