Hello: I have 220 miles on a new 1200gs. Returning from a short ride, I parked the bike in the garage. I happened to look at the rear rotor, and it has distinctly different color than the front - it is a little reddish, more like copper. I touch it, and it was quite hot - I could only hold my fingers there maybe a half a sec or so. The front is cool to cold. I use both front brake lever and the rear brake pedal when stopping. I will watch it some more tomorrow. Too bad with the linked brakes I cannot make a test of riding, stopping only with the front, and seeing what is happening with the rear rotor. I guess I can try to stop with the engine only, rolling into a stop But in the meantime, does anyone have any ideas what could be causing it ? Or anyone having similar problem ? Thanks, Paul.