Cycling is a great sport for fitness and competition. A lot of money is involved in the sport of cycling and so are the competitive pressures to use illegal performance enhancing drugs. Podiatrists can play a role in this with the use of foot orthotics in cycling. The problems is that it can be a bit difficult to find much information. Podiatry Arena has some cycling discussions. Podiatry Online TV has a good video on the setup of a cycling bike for good biomechanics. Often you can find out better information from cyclists, especially on cycling forums.
The problem with cycling foot orthotics is that there is limited room in cycling shoe and most of the knowledge and design of foot orthotics is based on the traditional gait cycle with a stance and swing phase which is not exactly what cyclist have.