I wasn't happy with roadsmarts both gone in 4000 miles (may have not kept inflation up @ all times). So we tried a set of PR 2's B load range and kept inflation close to 42 lbs on the rear. 3500 miles and down to wear bar. Will be putting on a new set before CFO. Not sure what to try next on the rear. The front seems to be holding up well although I think i got more miles out of the original Bridgestone 021 front than this.