If you want to compare the 2004 models :
"S" and "Standard"
http://www.ducati.com/bikes/my2004/d...rison&x=7&y=11 "S" and "R"
http://www.ducati.com/bikes/my2004/d...rison&x=8&y=14 The bore and stroke / compression differs considerably with the 'R' and other models.... and still does on the "06".
