I've put about 6,000 miles on a pair of Mavic Open Pro CD 36H rims laced to Campy Chorus hubs over that last two years. I weighed 240-200 during this period of time and never had to do more than minor truing of the rear wheel at the start and end of each season. The front didn't even require that. So I could not recommend a rim/wheel more highly than these. Now that I have dropped below 200 and am still going down I have moved to Mavics Ksyrium Elites. After about 1,000 on them I have had no problems. Also use Mavic's on my MTB. The Mavic Open Pro CD is sort of what all other rugged daily use rims are measured against. Not the lightest, but definitely one of the strongest.