SP2 Frame and swingarm weight.
Bike: 2002 RC51 SP2
Frame: 26.5 lbs
Swingarm: 12.2 lbs
I had my frame and swingarm stripped in order to paint them, so I decided to weigh them in case anyone was curious.
Both weights were taken after painting, and were weighed on a "Fit Bit" brand bathroom scale with digital readout to the tenth of a pound.
Frame was fully stripped except for the steering head bearing races. The swingarm still had the pivot bearings installed, and I had the triangular shaped hole on the right side of the swingarm filled in with expanding foam and fiberglass resin jelly, so that probably added a few grams.
I also weighed a couple other parts that I was painting:
2003 Kawasaki ZX6R frame: 21.3 lbs
2003 Kawasaki ZX6R subframe: 5.9 lbs
2005 Kawasaki ZX6R swingarm: 11.2 lbs