X4 Anti-Roll Bar UAM Front 1.1mm - Under Arm MountAnti roll bar for ball bearing roll bar mounting system and designed to work with the lower suspension arms. The anti roll bar system is mounted to the bulkheads via bearings from outside for extra smooth movement and for quick & easy changes and adjustment. The roll bar turns in ball bearings for maximum precision and free movement. Anti roll bar height is adjustable via a screw quick & easy. Anti roll bar has laser engraved stripes (corresponding to