Will work on 27 mm-62 mm fork legs and tubes and on forks that are 140 mm to 220 mm (5.5" - 8.6") on center Quick and easy-to-use tool for aligning front forks to ensure they are parallel from top to bottom Proper alignment reduces stiction, enhancing fork performance Knurled adjustment screws for easy setup Reduces seal and bushing wear. TOOL FORK ALIGNMENT