the shimano pd-r550 have been designed for medium-high performance in road cycling. they have the design, quality and performance of the brand at a very competitive price. with an extra wide pedal platform allows a perfect synergy between the pedal and the cove that provides an efficient power transfer and stability. features:-use in road cycling. -composite body. -simple anchor. -extra wide pedal platform. -efficient transfer of power. -spd-sl technology. -greater stability. -plate of the stainless steel body that reduces the flexion and the wear and tear of the body of the pedal. -clearance between bearings for a stable and uniform distribution of weight. -weight: 310 g.