The standard anti-rollbars allow for a great amount of body roll, and camber change. The handling is significantly improved with stiffer bars, with better high speed direction change, improved braking into corners, faster mid speed cornering and less roll understeer and oversteer. Rollcentre Racing have developed a front and rear bar which replaces the standard bars. The bars are adjustable by using 'blades' so a full range of stiffness can be achieved just by rotating the blades.