Tire size question

[AMGraham]

I've got an 80 xs1100 lg that I'm trying to get tires for. I called the shop where I'm currently getting it worked on, and my mechanic said the tire sizes on the bike now were: Front-MM 90-19 61H, and rear-MT 90-B16 74H. I searched the forum and found a post that said the 80lg has Front-100/90-19 and rear-130/90/16. Are these tires sizes the same or not? I've only had the bike about a month and would appreciate any help, as I'm definitely a newbie as far as bikes are concerned.

[John]

The sizes you see here are the correct ones. You can put a
140-90-16 in the rear, but it may rub against the left side of the swingarm. 130 is the recommended size.