High-G FJR Junkie!
Join Date: Jan 2013
Location: Millgrove, ON, CA
Some tire manufacturers show the overall diameter for various sizes and profiles... but less specification details these days.....
E.G., Avon Storm 3DXM... 180/55 is 629mm and 190/55 is 651mm. So, the difference/2 = bike will sit 11mm higher or approx. 3/8". Handling and turn in will improve as I found and like. I suppose you can simulate this by keeping your existing 180 and raising the forks in the triple clamp by 10-11 mm.
Keep yer stick on the ice....
2014 FJR1300A - Root Beer (sold)
2009 CBF1000A - Sienna Red
1999 VFR800Fi - Pearl Shining Yellow