Unlock efficient, high-intensity workouts with the Exxentric KBox4 Active System. Compact yet powerful, its steel chassis provides a solid foundation for flywheel training, with an inertia range suitable for users of all levels. The device allows up to two flywheels and offers a generous range of motion, while the automatic belt adjustment and optional kMeter II feedback ensure smooth, responsive resistance that adapts to your force. Ideal for home gyms or professional use, this system redefines accessible flywheel training.