I have read and had some experience with bigger block tires not working so well on wet roads. I ran Shinko 705s on my 800GS and found them a little worse than full street tires but was willing to make that trade off. I also posted on the radial tire thread that the Pirelli Trail II that I loved on my Griso is a radial rear but bias front in the V7 size. Seems there are very few matching sets of tires for us...