I like the input guys but I have been riding a 03 cbr1000RR repsol for a few weeks and it?s just as easy to ride as my z800 the cbr is a friend of mine who let me use it. The 2013 makes 113hp and 46 ft lbs of torque while my 16 Z800 makes 98hp and 56 ft lbs of torque so there is not much difference other then the top end. I test drove a 16 Zx6r (636) and it didn?t feel much different other then the top end, and riding position. And answer the other thing yes a liter bike will be faster then my Z800 fuck a 600 is faster at top end there close up to 100mph but the 800 runs out of top end around 120 from weight, aerodynamics, and lack of hp. I want a liter bike because I enjoy riding the cbr and how the riding position is more sport where my Z800 is like a dirt bike and the increased power I mainly wanted to know more on the bikes to see which one to look into more, trying to find, and what to watch out for on bike specific years.