I found expensive year-old road wheels for sale at ~40% off list. Drawback: the seller says they were used for cyclocross.

If they look undamaged and are true, can I assume they will be fine? My concern is cyclocross appears to put a lot more stress (dirt/mud...) on wheels than normal road riding and there might be unseen damage. True or nothing to worry about?

Thanks!

Dirt and mud aren't going to damage a wheel.

it is hard to say, as it depends on the rider, but what really damages wheels is low volume high pressure tires, which is the opposite of a cyclocross tire.

bunnyhopping can damage any wheel, as can ramming into things

I ran my Kysrium SL for cyclocross this fall with no problem and plan on using them as road wheels this spring. If the braking track still looks smooth and you don't see any dings in the rim or deformations, go for it.

It's winter. If you shop, you're going to see lots of new expensive wheels for 40-60% off list.

As a wheel builder in a cross crazy area I can say with good authority that yes....it can.

Grit and grime/sloppy conditions can help accelerate wear on braking surfaces. Apart from that if the wheels are well built and were applied correctly (eg no one is using their 16 spoke TT wheel for cross) then you can mitigate the damage cross does to wheels.

anything CAN damage a wheel, but i don't think the fact that they were used for cross would change how you evaluate them. feel their bearings. feel okay? spin them - look true? ping the spokes - sound evenly tensioned? good.

Been wondering about this subject for quite some time, you're answering it and I believe you. I'd often been more skeptical about all thing used their having come from cyclecross; the demands of the sport support the suspicions. Youre being a Pro-Wh.builder and having exp./exp. in a C.Cross market, your's is the answer. I hadn't even considered the br. surface aspect pertaining to dirt. Though I could never imagine that actively used for C.Cross wheels, though tougher, weren't more vulnerable and I've been leery. These rims and wheels overall must take a beatin' even under "good" circumstances just as a matter of course.