We have developed a simple adapter kit and cut template if you want to try and run handlebars or a bar& riser combo from a different company on your Challenger when using 1" OD bars with our Dash kit and maintain the factory controls. The kits contains 2 shim spacers that step a 1" diameter bar up to 1.25" to accept the Indian Clutch perch and brake master cylinder mounts. We also provide a left and right cut template to be wrapped around the left and right grip sections. This template indicates cut and drill locations for your grips section lengths, wiring port locations, switch pack indexing holes, and the twist grip notches. You will need to drill, notch, file, etc., the indicated locations in order for your bars to accept the Indian controls. There are some nuances to this approach, so please be careful and also watch the video to understand what you will have to do in order to make handlebars other than ours work. The shim spacers are mostly hidden once installed, so they are only offered in Brushed Stainless. You can feel free to powder coat or polish them on your own however.