Shimano SH-51 SPD Cleat Set
Top PickWhat We Like
- 4 degrees of float, easy on the knees
- Same predictable twist-out release every time
- Fits nearly every 2-bolt SPD pedal
- Cheap enough to keep a spare set
Worth Noting
- Will not fit the PD-M858 pedal
- Float
- 4 degrees
- Release
- Single-direction
- Material
- Alloy steel
- Compatibility
- All SPD pedals except PD-M858
Read the full review
The SH-51 is the cleat most SPD shoes come with, and after riding a set we understood why nobody swaps it out. The release is single-direction, so your heel twists outward and the pedal lets go the same way on every attempt. The 4 degrees of float let your foot rotate a little before the cleat stops it, which we appreciated most on a long climb when a locked-in foot starts to complain.
That predictability is what earns it the top spot. We have clipped in and out of these hundreds of times across spin bikes and trail pedals, and the engagement still feels crisp — you feel the cleat seat rather than hope it has. Nothing about the SH-51 is clever, and that is the appeal: no adapter plates, no adjustment drifting, no learning curve if you have ridden SPD before.
One compatibility note is worth checking: Shimano excludes the PD-M858 pedal, so look at yours if you are running something old and unusual. Steel also wears — walk across a parking lot often enough and the front lip rounds off, which changes how the pedal releases. That is why we keep a spare set in the toolbox instead of waiting for a pedal to feel vague halfway through a ride.
Bottom line: Our default replacement for any 2-bolt SPD shoe: the SH-51 engages firmly, releases the same way every time, and costs little enough to keep a spare pair.