Originally Posted by jp911

As a data point: I've been using the Mason X Hunt 650b alloy wheels on my gravel bike for the past year and a half. You and I weigh about the same and I've done some pretty heavily loaded rides with no issues (backpack, 4 water bottle cages and bottles, seat bag, and large top tube bag). I leave the WTB Horizons on most of the time, but have a set of Terrene Elwoods for more hardcore trails. No complaints and the wheels remain true. I bought the wheelset as sort of an experiment to see how I liked 650b. I have to say that I'm a convert. The extra tire size and reduced overall circumference, relative to 700c with 40mm tires, is really nice.