my PR2s are fine in the rain....under poor judgement and having a lot on my mind, i once did 152 (indicated) in the rain on the PR2s and had no slippage or hydroplaning....i wouldnt do that all the time obviously, but it wasnt instant death the main thing to watch for in the rain is painted lines on the road....i went left around a car that was turning right (slowly) and shifted gears as i passed, and the back end kicked out a little on the painted lines....almost lost the vmax once coming around a corner and cutting it too wide and hitting the painted center line in the rain....that stuff is like ice...doesnt affect cars as much because they have a larger contact patch, but when your whole bike tire can fit on those lines, they can be dangerous