rs to a gs??? well my rs is much faster of a tourer than my g/s , especially in the wind. i prefer to ride my gs over the rs. gets to my wrists fairly quickly if not riding aggressive even though i have different bars on it. the gs is comfortable at 70mph and the rs is between 90 and 100mph. the fairing on the rs is excellent though hot is the summer. the only major thing mechanically between the gs and rs is the rear tire change and getting at the alternator. i tried to make my gs into a high speed tourer but lost some of the characteristics of the gs so i changed it back. added note. "i believe that the gs line, g/s, gs to new, are the best motorcycles bmw ever made and possibly the best ever made in the world." i have ridden every dual sport adventure tourer bike made, except the African twin, which i will soon, friend has one and the g/s, gs fit every criteria well.
cheers
ride often