Okay, well not 40Lbs in street trim. In the latest Cycle World comparisson:
Bike Dry Wet
600RR 412 441
R6 386 413
ZX-6R 389 418
GSXR 392 421
F4i 410 439
As you can see, a big difference between the Honda and the other bikes. It is even heavier than the older F4i

When watching AMA Supersport the announcers constantly say the R6 has a 40lb advantage. They killed the 600RR in Fontana because it is easier to throw around. Honda really screwed up this time.