What do you mean when you say rough country roads? Chip-seal? Gravel? Potholes? I'm not heavy and I don't carry any luggage on my road bike, but FWIW I've had no problems with my 20-spoke radial front wheel or the 24-spoke x2 rear. I ride lots of chip-seal and frost heaves, try to avoid gravel and potholes but there's no avoiding them completely here. My wheels needed truing at about 3000 miles and they weren't that far out then, just a minor touch-up.