Compatible with all standard Shimano SPD pedals, (not SPD-SL or SPD-S series) the Shimano SM-SH51 Replacement Cleats are perfect for refreshing your worn SPD’s, or as extras for your backup mountain bike shoes. The solid steel construction provides excellent durability to reduce wear and tear, both on and off the bike. They also offer 4 of float, and offer more security, perfect for enhancing the efficiency of your pedalstroke. All screws and installation hardware are included.