 The device was then 'tuned' to the needs of each track by either changing the clearance between the disc and the cylinder bore or by adjusting the size of two-way valve within the disc itself.The Tuned mass damper on the Renault R26 vibrated in the opposite direction from the chassis due to inertia, with its magnitude calculated by the 'tuning' variables mentioned above.This counteracting force stabilized the front end of the car over kerbs and through slow and fast corners.