My 5th GoldWing, purchased new in 2003. Converted to a "TRIO Leaning Trike" in June 2018 w/ 122,200 mile on it at that time. Google "Tilting Motor Works".
2018 Honda Goldwing GL1800A (Titanium/Silver)
Converted my 2004 GL1800A to a "Leaning Trike" at Tilting Motor Works. Above 7mph it handles the curves as well as the original ever did. Under 7mph, it's a trike. At age 81, I could not pick up my dropped Wing. Push the TiltLock button, and the TRIO stands up. The transition from trike mode to motorcycle is automatic, so you can focus on traffic at intersections and in stop/go traffic. You can turn it off, and it is a leaning trike at all times handling like a normal Goldwing. It now has 126,00 miles on it (3,000+ as a TRIO, as of 08/18/2018)