i work on my friends st2 and i've wondered about it . it has a linked suspension larger tubing in the frame and the frame angles out around the tank more like a superbike than the ss it also has a ram air duct but is not connected to the air box the air box is also large .i bet put some extra pipe in the frame like on the 999s , work on the forks, put it on a diet and it it would work good, they also come with the heavy duty cases .