In general, bikes with twin disc brakes have the potential to stop faster than bikes with a single disc brake, especially in track racing scenarios. The primary reason for this is the increased braking power and heat dissipation provided by twin disc brakes. Here's why:
Braking Power: Twin disc brakes offer a larger contact area between the brake pads and rotors, resulting in increased braking power. With two discs, the braking force is distributed over a greater surface area, allowing for more effective deceleration. This can be particularly advantageous in high-speed track racing situations where strong and consistent braking is crucial.
Heat Dissipation: Braking generates heat, and excessive heat can affect braking performance. Twin disc brakes have an advantage in heat dissipation over a single disc brake system. The additional rotor helps to spread out and dissipate heat more effectively, reducing the risk of brake fade. Brake fade occurs when the braking system overheats, leading to reduced stopping power. By dispersing heat more efficiently, twin disc brakes can maintain their performance over extended periods of heavy braking.
Consistency: The presence of twin discs can contribute to more consistent braking performance. As the brakes heat up during aggressive track riding, the additional disc provides a greater thermal mass, helping to reduce the temperature rise and maintaining more consistent braking performance over time.
It's worth noting that the overall braking performance of a motorcycle is influenced by various factors, including brake caliper design, brake pad material, hydraulic system, suspension setup, tire grip, and rider technique. However, all else being equal, a motorcycle with twin disc brakes is generally better equipped to handle the demands of intense track racing and offer improved stopping power and heat management compared to a bike with a single disc brake.