I'd take a 20" wide single on the back of ALL three DW rigs I've owned I've duals. Assuming BOTH setups have the same overall width.
Supers are lighter in wieght, better mpg's, just as stable. Every test I've seen show better faster stopping, the majority of the time better traction. More carrying capacity due too the overall light tire/rim combo. About a ton more on a typical 5 axle truck trailer.
Only reason duals seem to stay around is the operators brain says 4 -10" tires per axle is better.
I'm personally seeing more tractors and trailers with supers than I did 20 years ago.
As noted, there are in reality, none available in sizes smaller than 22-24" rim diam.
Marty
