Your Keos will be absolutely fine. You don't need to run clips/straps if you have been riding clipless for some time. People hype it up like clipless on a fixed gear bike is crazy or something but I don't have any problems. I run shimano SPD-SL. I used to run the mountain type spd with no problem either. I'd rather rely rely on a ankle twist rather then having to slide my foot back out of a clip/strap set up if I felt I was going down or losing balance. I learned to track stand clipless as well. Feel like you're gonna fall? Clip out.