Accutronix BILLET REGULATOR MOUNTS are machined from 6061-T6 Billet Aluminum and are available in black anodized, brilliant polished or chrome finishes. There is also a solid 360 Brass option. This billet regulator mount bolts on top of the front motor mount of a Knucklehead, Panhead, Shovelhead, or EVO engine & provides a regulator mounting location.