Today on our 2015 Ford F250 Super Duty we're test fitting the Thule Vertex Swing. This is a swing-away-style 4-bike hanging rack. It's been designed for use in 2" hitches. Part number on it is TH9031XT. Now the swing-away feature is what everybody likes to see, what everybody wants to know how it works. Got a large black t-handle right here.… see more >