For what it's worth I've ridden extensively with a tour ride on the back of my bike, it was cheap and surprisingly high quality. I never felt like I was slowed down much and the only flat I got was from a staple in the road I didn't see (went all the way through to my rim tape) though I've never toured on it I've ridden with 45# over the rear wheel and it performed well for me in Seattle with all the rain and mixed surfaces. Next time it's time for tires I'll probably get them again, this time on the front as well