For what it's worth, when I was riding 100+ mi a week on my Giant OCR C3, I was roughly around 215-230 and stockier at 5'-8" and my wheels that came with it were Xero Lite XR-3's which were 24 rear and 20 front and they never had issues. I went on a very long hiatus from cycling and had some other stuff that factored in, my weight skyrocketed to 260 and I decided against both riding those wheels and that bike until I get myself down a bit. Got a cheapie fixed bike with a flip flop hub I put on freewheel to mimic a single gear road bike and some 28 or 30 spoke wheels or whatever but I digress..

As others have said, ride em and see if they work. They might. My wheels worked for me but after looking at reviews of the wheels, they did NOT work for other people. I'm starting to see a lot of things in cycling (as I get back into this) really are truly rider dependent and it really is one of the try and see parts of life. Saddles can fit one person great and wreak havoc on another person, while some people can rock on and race on cheaper bikes with cheaper gear sets when they've gone through several sets of DuraAce and Ultegra sets that kept failing them, while others need the DuraAce or Ultegras because lower gear sets failed them...