Shimano a600 road pedalsthese pedals feature a practical platform and spd binding combined with any spd shoes youve got a great combination of on bike performance and off bike walking comfort the ultimate goal of shimanos spd sl pedal technology is to transfer more power from the body directly to the bike inspired by a tour de france legend and realized through the legacy of shimano systems engineering spd sl integrates the shoe and pedal so they perform as a single ultra efficient compone