Maybe you've already been there, but http://tirerack.com
has the world's largest collection of car tire user ratings and reviews.
I try not to buy very many car tires.
1983 Suzuki GS850G, Cosmic Blue
2002 Suzuki Vstrom DL1000, Midnight Blue
2005 Kawasaki KLR650 - Turd II, The ReTurdening
"Do not crinkle your food wrappers loudly. Be considerate to others, or I will bite your torso and give you a disease."