So your ST1300 had Michelin's? Pilot Roads? It's hard for me to tell a dimes worth of difference between tires like Pilot Roads, Pirelli Diablo Strada's, and Metzler Z6's as far as grip goes. The Strada's will not last as long as the other two, or mine didn't on my 1200 Bandit. I get 6-8K on Pilot Road rear, 5K on Diablo Strada rear, still testing new Z6's on this bike but have used Z6's on other bikes and I like them fine. If you wear one brand out in the cold months it will seem like it grips less than the set you run in the warmer months, all temp related. The only tire brand I've tried that I absolutely don't like is Dunlop.