The Shimano R550 SPD-SL Road Pedals is Shimano\\\'s replacement for the alloy 105 pedal. This new road pedal offers great valve for money. With a wide composite lightweight body and blinding mechanism makes it a great pedal to learn how to use clipless pedals, while still giving you big platform for maximum power transfer and support. Yet you can go light still, with Shimano\\\'s \\\"new carbon 105 pedal. Born of the pro tour demand for optimal power and endurance, the low-profile pedal technology has expanded to a wide range of cyclists, including competitors at all levels, sport, club and recreational riders. SPD-SL is a road pedal platform systematically engineered with SHIMANO footwear to transfer more power from your body to your bike. For pro riders the extra-wide, low-profile cleat distributes energy more evenly over a wider surface and transfers it more efficiently to the bike, under the most extreme pedaling loads. No wasted movement. No loss to flex, voids or mismatched shoe/pedal designs. It\\\'s a core advantage that helps win races. The same energy efficiency that powers pro riders to the podium enhances the experience of other rider categories. Increased endurance for longer rides. More comfort and fun! System-engineered. Rider-tuned. You choose. Key Features The seamless pedal and cleat interface for a more efficient power transfer under the extreme pedaling loads encountered in race competitions SPD-SL is the road specific refinement of the system. This pedal platform was designed specifically for the needs of world-class road racers Extra-wide platform for maximum efficient transfer of power Shimano SPD-SL Pedals User Manual Bicycle Pedals Buying Guide