In case you weren't sure, 130/90/16 says that the tyre is 130 mm wide and it is 90% of 130 deep. That is 117mm which is approx 4.7 inches deep and 5.1" wide . So it is quite closely equivalent to 5.00/16. The 16 of course is the basic rim diameter for both. Funny that they mix mm for tyre profile with inches for diameter. I bet it was another commitee that came up with that idea.