I bought one of these last summer for my HD Ultra Classic (gone) and it was a couple of inches too short. Also the UC rear tire was too fat to fit into the gruve. It tried to tip the bike over as it rode on one side angle or the other. I sold it to a friend with a GL 1500 SE. The smaller width rear tire fit fine.
How does it fit the width of the GL1800 tire fit into the track?