I guess the first thing that touches the ground would be the std pegs. I am not sure as i 've only rode on the Rizomas. The std pegs though are positioned really low.
I've also seen that the clutch cover touches down quite easily, but then again i 've only had the aftermarket one right from the start.
In my SDR, with the aftermarket clutch cover and the Rizoma rearsets on, I only get to scrape the pegs and unforunately that happens quite often when i push hard on track. Changing the suspension from street to race track settings helped but was not enough.