Weight was the primary focus by producing the new CBR RR 66 in 2007. The result was pretty good. The 2007 model was 9.1 kg lighter than the 2006 model. For adjustments to the CBR600RR for lighter weight and better performance, Honda\'s engineers started to make the engine lighter. The all-new engine was smaller and lighter than its predecessor. The frame is lighter, slimmer and more compact than the frame of the CBR600RR 2006. The suspension of the 2007 model remained virtually unchanged from the CBR in 2006.