In the bike "hunt" we were looking at many factors, we're looking at trips of 150 miles+, and than weight is a big factor as we want to haul them on hitch carriers, in days gone by we have had Honda Gold Wing and Yamaha Venture, both being large and a soft ride, moving all the way down to the Urbans we found that a slow ride let you see, which was a big change over number of miles rode. After learning the "see" factor we never want to go fast again on our motorbikes. We used the Honda sh150i's for the later part of summer, we carried them on our Harbor Freight carriers which started to fail and need to be replaced.
We started looking at Dual Sport bikes, with Honda's and Yamaha's being on top of our choices, both making great bikes. We have settled on Yamaha TW200's for many reason's but the top item's are weight:281 pounds, lots of support; Racks, Shocks, Bars, Seats and they're cheap!
I found hitch carriers from "Discount Racks", the Black Widow model for just $71 each on the Scratch & Dent sale and they have arrived at 69 pounds we'll be carrying about 340 pounds on the frond and back of the van. I'm working on "helper Springs" to help with the added weight. I'll post some photo's this week-end.