http://www.radirwheels.com/contents.htm These Radir slicks are great and naturally you'll wanna avoid the rain but with their 4-ply sidewall, they actually drive quite nice compared to a wrinkle-wall slick. Now, I ran the 10.00 x 15's that are close to 30 inches tall and it really took me a long time to get the air pressure situation right. I started like I normally would with about 10-11 LBS. but I never started getting a nice even footprint across until a little over 30 LBS. Yeah, I know.......that's a lot of air pressure for a slick, but that's when they started finally leaving a decent footprint and actually ripped off my housing perches due to their effectiveness.