Backside anti-roll club for ball-bearing roll club mounting system and redesigned working alongside the X4 back suspension system system system fingers. The anti-roll club system is mounted on right back bulkheads via bearings from outside for extra-smooth motion and for quick & easy alterations 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 thickness) for easy recognition.