Rotor 3bt .310in 11in x 5in Sprint/Modified

The Rotor 3bt .310in 11in x 5in Sprint/Modified by Wilwood is a purpose-built brake rotor designed for high-performance sprint cars and modified racing vehicles where thermal capacity and precision stopping power are essential. This rotor is a critical component for serious bracket racing or sprint car braking systems, engineered to endure the extreme demands of repeated hard braking and sustained heat cycles.

Featuring a rotor thickness of .310 inches, this design provides optimal thermal mass for rapid heat dissipation while maintaining the structural rigidity necessary for consistent performance lap after lap. The 11-inch diameter and 5-inch width create a robust contact surface that works seamlessly with Wilwood's proprietary brake pad compounds, ensuring fade-free modulation even under sustained deceleration loads. The 3bt designation indicates a three-piece construction with separate hat and rotor body, allowing for independent cooling and expansion characteristics that minimize warping and extend rotor lifespan.

Sprint and modified racers routinely specify this rotor for both front and rear axle applications, depending on their specific racing setups. This rotor is trusted by engine builders and chassis fabricators nationwide, making it an essential choice for those looking to enhance their vehicle's braking performance in competitive environments.