[Chuck D]

Look, if you want to put 90/90 and 110/90 on the bike, they will work fine. We do it all the time.

Just "gearheads" splitting hairs and pointlessly running minutiae into the ground.

[High On Octane]

Just "gearheads" splitting hairs and pointlessly running minutiae into the ground.

LOL Honestly, I just enjoy discussing all the differences between the different markets, always learning something new.

As far as actual tires, if the profile fits the width of the wheel, it will work.  For the most part anyway.

[Eagle56]

Yep should have read 325 and 350 x19

[AmBraCol]

Yep should have read 325 and 350 x19

As Tom (Ace) pointed out, 90/90 and 120/80 should work for you just fine.