Scott,
First off they are not offered in appropriate size for the rear of my Roadster.
Second, is only that my brother has ran two of them on the rear of his Stratoliner and while they performed well, they only lasted him about 6-7K miles.
Third, the thing is made for Harleys. Posted on the Dunlop web site: "Dunlop’s American Elite is the only aftermarket tire line for Harley-Davidson motorcycles that is designed, tested and manufactured in the U.S.A."
Forth, for your R3T, it looks to me like only bias ply are available for the rear and nothing for the front. Are bias ply recommended for the R3T?
Obviously of no use to an R3T, but Dunlop does offer a 140/75R17 in this model which is "V" speed rated and on my Roadster tire list. I may try one out after I mount and wear out the Avon Azaro waiting in my garage.