The Shimano PD-M540 Off-Road Racing Pedal are Shimano's lightest off-road cross-country pedals featuring proven designs that work in real world conditions. Built on the Shimano's legacy of Quality, Dependability & Endurance High performance of M959 in a more affordable design. Open binding mechanism is designed to better shed mud. Strong and durable chrome-moly spindle. Low maintenance sealed cartridge axle. Shimano invented SPD, so you can depend on it! The recessed cleat and clip less pedal technology revolutionized the cycling shoe/pedal interface. Ultimate power transfer and peak performance demand that pedal and shoe work together as one integrated system. Shimano's legacy of Systems Engineering and premier component design provided the model for a totally new shoe/pedal system, and SPD was born. Since then, decades of legendary "in-the-dirt" dependability, reliability and sheer endurance has made SPD the world's "go-to" pedal technology.