Shimano SPD-SL Pedals PD R8000/R7000/5800/R540/R550 Road Bike Pedal Ultralight Carbon Self-lock Pedal with SH11 Cleat

SPD-SL System: SPD-SL is the road specific refinement of the system. This pedal platform was designed specifi-cally for the needs of world-class road racers. Power transfer efficiency: The seamless pedal and cleat interface for a more effi-cient power transfer under the extreme pedaling loads encountered in race competitions. EXTRA WIDE PLATFORM: Wide platform delivers efficient power transfer and stability. Adjustable Insertion and Extraction Tension Settings: Use allen key,turn the knob."-"to loosen;"+"to tighten. EXTRA WIDE PLATFORM: Wide platform delivers efficient power transfer and stability.