Double Barrel Inline AIR: - [January 2017 to present] The latest iteration of the Double Barrel Inline Air rear shock has a redesigned air can that features a 'parallel to the air can' inflation valve. The ShockWiz hose will contact the air can due to the small amount of clearance this design creates. ShockWiz CANNOT be used with any Double Barrel Inline Shock that uses this parallel inflation valve.