This has been pretty common knowledge for a while. A lower cadence yields increased raw muscle power, but legs will also tire much faster. This is why you see

This has been pretty common knowledge for a while. A lower cadence yields increased raw muscle power, but legs will also tire much faster. This is why you see pros, who race for 6 hours at a time, with cadences > 90rpm (Lance Armstrong is known for a super-fast cadence of 105rpm). Yes, they could technically go _faster_ with a lower cadence, but their legs will fry way sooner. A higher cadence is sort of a happy medium.