The Shimao Dura-Ace PD-R9100 is the lightest, most efficient Dura-Ace SPD-SL road cycling pedal ever created by Shimano! The Shimano Dura-Ace PD-R9100 road cycling pedals are a great pedal for the rider who knows that a super light pedal with a wide platform resulting in stability and power transfer can provide the smooth, pedaling efficiency exemplified by the elite riders.