RE: Asphalt/Concrete Tire
Tire dimensions can be found here.
[link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBCN7&P=X]Thunder Quake Tire Dimension[/link]
I used CNR 23mm hub adapters that fit the 40 series tires. The tires fit the wheel just a little loose, however they are more balanced than my Moabs because I actually had to place several weights on the inside of the same wheels with the Moabs. Now I use NO wheel weights.
ElectronJunk