We just ordered a Columbus 320 & did not order the rear cap. I think they look great but other than aesthetics, is there a true benefit? I would appreciate your thoughts...
The roundness and angling in on the corners of the rear cap is what helps with mileage. Here is a picture of my 2005 29WBLX Cardinal. I moved from a 9,500 trailer with square corners to a 12,400 pound trailer with caps on both ends and get better MPG.
It does not appear the rear cap in question was design to help mileage, and is more for looks. Chris