This is an optional Team Associated B6.1/B6.1D FT Rear Anti-roll Bar Set. This set includes three bars. Effects of Rear Roll Bar Adjustment Stiffness Characteristic Softer Increased Rear Chassis Roll Increased Rear Traction Decreased Front Traction Decreases On Power Steering (May Cause Understeer) Stiffer Decreased Rear Chassis Roll Decreased Rear Traction Increased On Power Steering (May Cause Oversteer) Quicker Steering Response in High Speed Chicanes