These Heavy-duty top motor mounts fit 1984-1999 Harley-Davidson Evolution motors in a softail or rigid frame. Featuring a 13/16 inch D-shaped hole which accepts various aftermarket ignition switches such as the Lowbrow Weatherproof Starter Ignition Key Switch, ideal for choppers and custom builds. Stainless steel construction, riveted together for maximum strength. Made in Cleveland, Ohio.