My carbon soled cycling shoes are ever slightly too roomy, so I'm thinking of putting an extra inner sole under the existing ones, or replacing the existing inner soles with slightly thicker ones.
Thinking I might need something quite hard/stiff and yet still comfortable, so that pedaling energy is not absorbed into the inner sole which would defeat the purpose of having a stiff carbon soled shoe in the first place? Or are standard shoe inner soles OK?
