Securely fit your mount to a bar using one of Quad Lock's Bar Clamps. Choose between a medium or small bar clamp to suit your bar size. Tech Specs: Bar clamp (Medium): Made from tough glass filled nylon. Stainless steel hardware. Fits bar diameters 22 mm (7/8"), 25 mm (1"), 28 mm (1-1/8") and 32 mm (1-1/4"). Includes three spacers and is designed to fit bar diameter 22 mm (7/8"), 25 mm (1"), 28 mm (1-1/8") and 32 mm (1-1/4"). Bar clamp (Small): Made from tough glass filled nylon. Stainless steel hardware. Fits bar diameter 10 mm (3/8"), 12 mm (1/2"), 14 mm (9/16") and 16 mm (5/8"). Includes three spacers and is designed to fit bar diameter 10 mm (3/8"), 12 mm (1/2"), 14 mm (9/16") and 16 mm (5/8"). What's Included?