Shimano SH51 SPD Cleats
The Shimano SH51 SPD Cleats are the cleats that come with your Shimano SPD mountain pedals. The Shimano SH51 SPD Cleats are black and have four degrees of float for your feet. Compared to the SH-56 Multi-Release Cleats, these are much more secure and are generally preferred for the experienced rider. To get out of your pedal, you'll have to swing your heel out a bit more than the SH-56 Cleats. Please Note: These will not work with older PD-M858 pedals (for those you'll need SH-52 Cleats). On that same note, if you have an aftermarket SPD-style pedal that isn't a Shimano branded pedal, the Shimano SH51 SPD Cleats cleats are most likely not compatible with your pedals even though they might look remarkably similar to a Shimano pedal.