I weight 155 lbs. and have had no problems touring on anal-retentively tensioned 32-spoke Open Pros with 35 lbs. of gear. It took hopping up and down curbs with 30 lbs. of groceries to finally knock the rear wheel out of true so I won't be doing that again. I would be careful with an extra 30 lbs. and I wouldn't rely on them to ride across the country, but I'll bet you'll get by. I have more problems with a frame and rack that really isn't designed for loaded touring getting a little squirmy than I do with the wheels.