Front side anti-roll club for ball-bearing roll bar mounting system and redesigned to work well with the X4 front suspension system arms. The anti-roll bar system is installed toward front side bulkheads via bearings from outside for extra-smooth motion and for quick & easy modifications and modification. The roll bar turns in ball-bearings for optimum precision and free movement. Anti-roll bar height is adjustable via a screw fast & effortless. Anti-roll bar has laser-engraved stripes (corresponding to club thickness) for simple recognition.