Shimano PD-M821 SPD Pedals SaintImproved axle durability (vs. PD M820) Wide contact area enhances stability when paired with SHIMANO AM series shoes Thin pedal body lowers stack height and improves obstacle clearance Four height adjustable pins per side for improved grip when not clipped in Non pop up alloy pedal body for simplicity and durability Slim and durable chrome moly spindle with 8 mm hex wrench mount Pedal body protects binding mechanism against impacts Robust retention