2013 Roadtrek Popular 210 US, 2013 Roadtrek 210 Popular US Our 210 models represent the ultimate fusion of design, engineering and functionality in the class B segment. B uilt on the Chevrolet Express extended van, they are true class B motorhomes. We start with a full van body and then extend the frame 18 behind the rear wheels increasing the overall length to 21 11 . Then we add a fully-painted steel-cage-reinforced fiberglass body. But the 210 is no box on wheels . After the cab, the body widens gradually to a maximum of 9 at the rear wheels then gently tapers to the rear. The 155 long wheelbase allows for amazing ride quality..