The E-mail response I got from them.. a canned answer for sure…
Thank you for contacting Customer Relations at Continental Tire the Americas, LLC.
The Vanco product line is very similar to the ST product line. Both tires have reinforcement which allows the tires to handle the weight of the Campers. We can only recommend original equipment fitments. As long as the Vanco tires you are interested in are the same size and share the same speed and load index as what came original equipment on your vehicle then the Vanco tires will work. Thank you for your interest in our products.
Sincerely,
Continental Tire the Americas, LLC.
In a follow up phone call they were adamant and would only repeat the above canned answer… no recommendations were forth coming only if the tire should meet or exceed ALL OF the OE requirements they would work…
I will research this more but it seems like many of the same problems exist with them as there are changing to LT’s, like changing rims to match or better loads, but it opens up some options for som smaller wheels…
And just like switching to LT’s, if it’s not done right it opens up liability issues that can and should be avoided…