My second set of Berd Wheels (I run Berd on my XC bike too) -- I really love the way they ride. There's some thought about deep-dish wheels in gravel, and these wheels aren't -- but I find I am on rough roads far more often than I am going over 30mph. Rough roads are where these wheels truly shine. They are amazingly light, accellerate quickly, but most importantly (to me) dampen road chatter and washboards letting me fly through the rough.