So I narrowed it down to a kilo tt or scrambler v3 for my first fixed gear bike. The bike will only be used for recreation on paved paths with some relatively steep hills around my house, as well as down lake shore drive in the spring. I want a bike thats quick but will also be sturdy enough to the point where I won't have to worry if I hop off a curb or two. Can anyone attest to the weight and speed difference between these two? what would you recommend? And could I get some sizing advice? I'm 6 ft 185.