Regarding weight limit on the RS10, I'm not sure where you got that information, but I've never heard that number. A quick internet search gives info across the range from 200 pounds to no rider limit. They generally aren't regarded as durable wheels, but that's the nature of the internet, who goes online to rave about their stock wheels on their 105 build bike?

What I will say is that in 2 years of selling CAAD10's, I've yet to see one customer come back with wheels wildly out of true, or broken spokes, etc. Not that it doesn't happen, but the way the internet makes it sound, I should see these guys at least once a month. And I don't think I've once ever thought to ask how much they weigh before I sold them a bike with RS10's.