Backside anti-roll club for ball-bearing roll club mounting system and redesigned to utilize the X4 back suspension system hands. The anti-roll club system is set up towards the rear bulkheads via bearings from outside for extra-smooth movement as well as for quick & easy modifications and modification. The roll club turns in ball-bearings for maximum accuracy and free motion. Anti-roll club height is adjustable via a screwââ¬Â¦ fast & effortless. Anti-roll club has laser-engraved stripes (corresponding to club level) for simple recognition.