This chrome plated light weight aluminum rack is made by Show Chrome and is designed to attach to the trunk lid using four mounting points. It measures approximately 23" X 12" and has non slip rubber inserts.
The compound curve is designed to follow the curves of the Goldwing GL1800 trunk lid. It will fit with or without a factory spoiler. If it is being used with a spoiler, the rear two legs will just sit on top of the spoiler and the rack will only actually be attached to the trunk with the front two legs.
This comes with all required hardware and instructions. Some drilling is required and it will fit all Goldwing GL1800's from 2001-2017 except the F6B. 

For those of you who are trying to match up a rack with pre-existing holes in your trunk lid, we have measured the distances between the legs. These measurements are from center to center where the leg would meet the lid. The three measurements are front to front, rear to rear and front to rear. Keep in mind that there are some variances and the rack you receive may be slightly different than these measurements by an 1/8" or so.

F-F 16" R-R 13 3/8" F-R 5 5/8"