Kz650 SR tire help

Ok my stock rear is a 140_90_ 16 71H

Will a 140_90_16 77H work. I bought tire already on ebay it said it would wour but idk looks a lil wide. Also im a noob what is the H# stand for? Would greatly appreicate help I have like 14 day to return if it wont work.

take a look at this link; it may help explain the tire ratings:

www.motorbiketires.net/Reading-a-Tire.php

Still lost with the H71 to H77 I understand that the h is speed rating however it says the last numbers are the tire size well thats a big tire the . Appreicate the link however im still lost will it work or no?

71 or 77 is not tire size. Take a look further down the link at the Tire Load Rating Chart; that should answer your question. 140_90_ 16 is the tire size. Ed