Will a 190/50/17 or 190/55/17 rear motorcycle tire fit on a 4.7 (120mm) rim?
the in straight forward words way that could paintings is that if the 100 and eighty is an over sized tire on the rim. in case you want to run a extra narrow tire it is going to likely be slightly extra paintings than merely switching the tire.
Not without drastic pinching. They need a 5.5 rim width for proper use. You're looking at fitting a 160 or 170 ( and maybe some 180's, I think Avon designs wider tires for more narrow rim widths). Unless you're destroying tires with heat/spinning up/sliding out under aggressive use (usually in the 150hp range of bike), you don't need the heat displacement of a 190. And if you don't need the penalty of extra mass and size, then it's better (for handling and acceleration) to stick with the smallest tire that gets the job done from a Performance perspective. I frequently run 150's on rims that can take 160's on my track bikes.
