Tri-Glide Reverse Switch Extension Harness Kits were designed by NAMZ for anyone that owned a trike and would want to modify or customize it so when it came time to change out the handlebars, our kit would come in handy. Our Tri-Glide Reverse Switch Extension Harness Kits have been tested and designed by our engineers to work & fit perfectly. Simple installation and are intended to be installed with our handlebar switch extensions.