JCB DIESELMAX will employ a dual-circuit, triple braking system comprising friction brakes on all four wheels, driver-activated engine braking, and parachutes.

An innovative bespoke system is used where the carbon brake rotors are clamped, not by conventional six-pot racing callipers, but instead by brake pistons mounted within the wheel upright. The pistons are activated by a torque tube which pushes them hydraulically into contact with a stator that clamps the wheel-driven rotor. The system provides enhanced swept area and effectiveness and the aim is to provide a friction brake system capable of stopping the car in an emergency, such as complete failure of the twin parachute back-up system.

John Piper points out: "The car is four times as heavy and almost twice as fast as a Formula One car, so there is a lot of mass to stop and a great deal of heat to dissipate. This system enables us to get as big a brake as possible within the 15 in wheels, which will be turning at 5500 rpm or twice the speed of rotation of a Formula One car's."