Ambitious mountain bikers, road cyclists and bike tourists take the connection between foot and pedal very seriously. Specific shoes for road or off-road use in combination with clipless pedals guarantee a great interface between rider and bike. In general, the more race-oriented a shoe is, the stiffer and lighter it'll be. Models more suitable for walking in usually offer less-efficient power transfer and are heavier. For bikers less fond of clipping in, there are grippy mountain bike shoes available that provide the right balance of power transmission, grip and freedom of movement.