I'm not sure what a good fitting cyclo cross bike feels like. I'm seriously considering picking up a new or used Cyclocross bike for next fall race season. I've only been riding road for the past 15 years with more or less fast group rides. so I know a what I need to be comfortable on my road bike. but now sure how this translates to cross. I've gotten some poor guidance from the first two bike shops I visited and thought I'd check in here before looking at used bikes.
In case it matters: I ride a 55.5 cm top tube with a 100mm stem. I have quite a bit of saddle to bar drop and am very comfortable this way. I've heard I may want to consider a more compact and upright bike fit to make it easier to get on and off the bike and also so it is more maneuverable. So does this mean I should find a ride that is short in the top tube? Should I be shopping for 54's instead.
As an aside: I picked up a Motobecane Fanthom UNO as a commuter bike in size 54 with a 130mm stem. it feel a bit small but is totally fine for commuting and bar hopping duty. Not sure I could get this one into race form without redoing all the fit pieces. So, I'm looking for a real cross bike (with gears) to tear up the Georgia CX circuit this fall.