Shimano calls this a racing pedal, and it's easy to see why. The resin cage surrounding the clipless spedal is larger and grippier than the M545/M424 design. The clipless pedal inside the cage is based on the latest Shimano SPD MTB iteration. Making entry easy is the 12. 5-degree angle at which the clipless pedal sticks up from the cage. The result is a pedal that's good at shedding muck and is easy to stand on as well as easy to get in to.