Tire sizing confusion 82 XJ750 Maxim

I have not found a site on the interwebs after an hour long search .

82 XJ750 Maxim tire sizing: What is What?

My front tire has a familiar sizing on the tire itself of 100/90-19. Page 183 of the Haynes Manual is
Confusing as it gives a size of 3.25H19-4PR. I don't know this nomenclature. Is the tire on the bike the right size?

The Rear tire, in the manual shows 130/90-16. The Dunlop Tire on the bike is an MT90B16 Are they the same?

 

100/90 19 for the front. 130/90 16 for rear.

I put a front tire a size bigger on mine. I think it looks funny with the stock size.

 

@short_circutz has it correct. I took like to use a110/90-19 front as it seems to help correct the designed in speedometer error. The 3.25-19 sizing is about the same as 100/90-19, it is the "old school" non-metric style. The MT is mostly Harley nomenclature, just because they can.

 

Right on thanks

 

Ok I get it now thanks lots