Fits 2017 to new bikes. Personalize Your Own Stock Harley Cowbell Horn Cover. “Add a piece of your life to your bike” with MotorDog69's Challenge Coin Mounts. Kit Benefits: Easily mount and remove challenge coins to personalize your own stock Harley Horn Cover. You can loosen one of the set screws in order to flip the coin over to display the other side, or re-mount a different coin, to get a new personalized look. Coin mount attaches with rtv silicone (found locally) to your own horn cover. The feeling you get when you mount a personal challenge coin on your bike, is something only our customers know. MotorDog69 Is The Inventor and Designer Of The World’s 1st Adaptable Challenge Coin Mounts For Motorcycles And All Vehicles.