Drag Specialities 2040-0461 Turn Signal Relocation Clamps, 49mm Forks Easy solution for relocating your original Harley turn signals from underneath your handlebars or triple trees, to your front forks Clamps come complete with all necessary hardware and bolt-on in minutes Suitable for Harley-Davidsons and all other bikes with 49mm forks 5/16" (8mm) mounting hole Sold in pairs.Please note clamp is grooved not smooth at the sides as shown in the photo