2006 Honda CBR600RR (CBR600RR), HAS FRAME SLIDERS AND UNDERTAIL ELIMINATOR. - There's no tougher proving ground for a 600 cc sportbike than the AMA Formula Xtreme class, and considering the fact that one machine the CBR600RR has won every single race of the last two seasons, not to mention the 2004 World Supersport title and 2005 Daytona 200, need we say more? Well, other than this state-of-the-racing-art middleweight marvel simply has no equals.