I’m 6’0″ and 180lbs with roughly the same inseam. The Ninja 650 (& sv) would fit you like a glove. Both the sv & ninja 650’s are not in-line four bikes, which makes for that non-aggressive/more forgiving riding. Mind you both will still tear up the road if you want them to. I think the Suzuki bikes run heavier than the Kawa’s with the exception of the naked sv which if memory serves is lighter than the Ninja 650. The other Suzuki bikes generally run more weight than their Kawa counterparts, with some (like the gsx650f, older katanas and the gs500f) being noticabley more.