I don't get some of the references to cyclocross racing. I get that the pit is where you wrench on your stuff or whatever, like a pit in other wheeled sports, but I keep seeing people say things like "blah, blah pit bike", or "blah, blah pit wheels", stuff like that. For example someone says "it would make a good pit bike" I ask myself, why would someone need a bike just for the pit? I don't get it. Why "pit wheels"?
Can someone tell me what's going on? I'm guessing it's something way beyond my means, like bringing two bikes in case one gets trashed or something.