CB750K Tires

Posted by Cabreco on May 14, 2018; 2:43am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/CB750K-Tires-tp4063342.html

It's time for new tires. Fiona currently is running in Front  3.50H19-4PR (100/90-19) Current Size & Rear  4.50H17-4PR(130/90-17) Current Size.
The manual says I should have 120/90-17. Should I go back to the OEM size? Would it make any difference?
The 120's are cheaper lol

Any input would be appreciated