I have a solution for you, but the # BWMC2301 is not a confirmed fit and B&W does not offer a Biker Bar for a Honda Goldwing.
Instead, the best option we have for you is the Tow-Rax Removable Wheel Chock part # TWSPWM. It can be bolted directly to the trailer floor, it will accept different wheels sizes, and there is no interference issues with your front brakes.
If you don't already have a set of shock absorbing ratchet straps, I recommend using the ShockStrap Ratcheting Motorcycle... view full answer...