Turn Signal Fork MountsGZP Chr. 41mm fork mount markerlightclam These clamps bolt straight on to your forks for a clean look and easy installation of most turn signals. They are sold in pairs for use on 39mm forks as used in Sportster, FXR and Dyna models, 41mm forks as used in Dyna Wide Glide, Softail and Touring models, as well as for use on 49mm forks as used in V Rod, 2014 to present XL1200X FortyEight, 2006 2017 Dyna, 2014 to present Touring, 2008 2011 Rocker and 2013