BMW Motorrad says that the goals of "1 second faster on the track and more than 10kg lighter" are even outperformed with this new BMW S1000RR. 152kW (207HP) with only 197kg (full tank) sound extremely good for the third generation of the BMW S1000RR. It is the new BMW ShiftCam Technology which generates the improvement of power over the complete rpm range. To keep it short and simple BMW says: because of less weight (lighter engine and exhaust, engine is part of the frame now) in combination with a new suspension and a new swingarm the result of much better handling and controllability could be reached.
Detailed information, pictures and a video can be found here.