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.