your help for different wheels


yeh I know but I said as front 120 alternative that is less secure but even more risky..
I thought then 16" R3 wheels, front 150/80 with 180/70 rear, as tires sizes..
this tire size is precise on 2018 FatBob whose wheels I would prefer just as look..

so I wont' never change front 150 but rather in case I will mount rear 180..
even 190 or better 200 if it will be possible but anyway en case I will put both 16" wheels..
I won't diminish front security but I should get more agility, althought not lot more, on rear..

I liked so much your help
 
You are very welcome.
I would not reduce the front wheel diameter to 16". This would reduce your lean angle clearance.
I have drug the front of my my peg rails and the engine guards with the 17 inch front wheel. Lowering them a half inch is a mistake in my opinion.
Stay with the 17 inch front!
Going to a 17 inch rear would improve clearance and handling.
 

it's good to know so I will keep it in my mind