Not sure about your area but here's my experience from my first season this past winter:
Originally Posted by bennybenny
-I have a 29er mountain bike, no end bars, would this be allowed on course? Yes mountain bikes are allowed.
-is it insane to enter such a race with a 29er? Not insane. There were several in the lower categories riding them in both local series as well as some fast guys that would ride them for some courses in the faster races.
-are most cyclocross racers decent road racers already? Most of the guys around here were road racers but I don't know how fast in comparison since I haven't ever raced a road race. I'm a cat 2 MTB rider and was able to finish top half in the 4/5 races.
-are the environments cut-throat more laid back and friendly to beginners? One thing I loved about it was how "fun" these races were. I always have a good time racing but these races are the best. Maybe the Pro/1/2 races are different but the 4/5 races I did and the 3/4 races I watched all seemed pretty laid back even up towards the front.