Our Ultimate Adventure Trip is sponsored by BFGoodrich, and we have been bugging them for a bigger tire. The crown jewel for the Avalanche has got to be our 39x13.5-inch Krawler T/AKX tires. These tires are not yet available, but we were assured that they would be coming eventually. BFGoodrich let us be the guinea pigs with this prototype tire, and we are really excited about them. The fact is that these tires were designed first and foremost for the off-road market, with road handling abilities as an afterthought. But don't get us wrong--we can vouch that driving across country on them at excessive highway speeds was never a problem. Our tires were mounted on cast-aluminum 17-inch Walker Evans Racing Beadlocks. With years of desert racing and rockcrawling experience, the Walker Evans team knows how to make a seriously strong wheel.