What is it about roadies and the notion of cleanliness that makes them so averse to a little dirt on their frames? Is it purely aesthetic, or does the presence of dirt actually pose a legitimate threat to the bikes performance or longevity? Given that most road bikes are designed to withstand the rigors of inclement weather, it seems counterintuitive that theyd be so sensitive to a bit of dirt or grime. Can someone shed some light on why the prospect of getting their bike dirty is so daunting to some road cyclists, when in reality the vast majority of dirt and grime can be easily cleaned off with a hose and some soap?