If you already have a Standard Driver Butler and want to use this Butler on the 2018 or later Goldwing, then all you need to purchase is this “P” shaped driver mounting bracket. You can use your existing Standard Driver Butler hinge and ring on this new driver mount. The mount is machined 6061 aluminum and powder coated black. It has height adjusting mounting slots so you can raise or lower the ring position as needed, and being aluminum, it adds rigidity to your Butler system.