Doc, I think you are misunderstanding what geofkaye is talking about. These "new" tires are to replace dual tires on one side. I've NEVER seen a "utility" trailer with duallys - (translated 4 tires per axle). Super Singles replace 4 tires per axle to 2 tires per axle and are mostly used to replace the rear tires on larger over-the-road trucks. I've not seen these tires on a trailer yet, but I'm sure there are dopes who have done it!
