mixing a K70 with a Bridgestone Spitfire

[Shovel Jockey]

Out of necessity I may have to mix a Dunlop K70 3.50X19 front with a Bridgestone S11 Spitfire 120/90X18 rear.The heights are nearly the same, 26.7 vs 26.6. Am I flirting with disaster or do you guys think this match could handle ok?

 

[XSLeo]

I generally prefer tires that match, so I change both tires as a set. That's just me. Others have had good luck mixing tires. All I can say is that if you want to mix tires is to be vey careful the first few miles to learn the way the bike handles with that combo.
Leo