There is a special design petal shape grooves that exist on the active cooling wheel spacers. The grooves utilize the rotation of the wheel spacers to allow the external cold air to enter and continuously flow inside the wheel spacers through these aerodynamic arcs to take away the heat, so as to achieve the purpose of actively dissipating heat for the braking system. The principle is to rotate like a fan for the braking system, supplying air and reducing heat. Through this way, it can improve braking efficiency, reduce brake fade, and reduce driving safety risks.

Active Cooling Technique of BONOSS Wheel Spacers(formerly BLOXsport)