Just finished mounting a Shinko 705 (110/80-19) on the 19" rim -----
twice 
I had it mounted
, then looking over on the work bench, I realized I had forgotten to put on the rimstrip.
Adding to the fun, I couldn't use my wheel mounting stand because the centering spindle was too large to fit through the wheel bearing.
I don't know if it makes a lot of difference, the 19" rim is 2.15" and the Shinko tire calls for a 2.50" rim.
The tire seems to fit OK.
jb