ok…as super singles are a new thing over here ,and we run btrains on sand/gravel (load around 35.5tns ish)
Question is what is the weight difference in weight …super single vs double 22.5s
as boss is looking at a new outfit and he remembers me saying that we ran SS in uk. and as we run outfits wi 4or5 trailor axles.
singles would be on alli and 22.5s (10 stud steel) . 
jimmy.