The Shimano SM-SH51 SPD Cleat Set is compatible with all Shimano SPD pedals, except for the PD-M858 model. This ensures broad compatibility across most SPD pedal systems. Single Direction Release: Designed for simplicity and safety, these cleats release from the pedals by twisting your heels outward. This single direction release mechanism provides a secure yet easy disengagement, perfect for riders who prioritize control and stability. Durable Design: Constructed for long-lasting performance, the SM-SH51 cleat set is built to withstand the rigors of regular use, ensuring consistent performance on every ride. Upgrade your cycling setup with the Shimano SM-SH51 SPD Cleat Set, offering reliable compatibility, secure engagement and easy release for a confident riding experience.