evo.com | Shimano Pedals > Shimano's SPD system debuted in 1990. The Shimano SM-SH56 Cleat Set was revolutionary 30 years ago, and it's still so good that there's really no need to change it. Think about it: 1990! Bolt Pattern Shimano SPD Lateral Adjustment Includes 2 cleats, 2 washers and 4 bolts | Shimano SM-SH56 Cleat Set 2022 - Pedal