The device that clips into the cleat on your bike shoe resembles an Egg Beater. It’s basically a spring and two arms that extend from the axel of the pedal. Without a lot of mechanical parts, this pedal rarely has any problems. It sheds mud, like no other and allows you to clip onto the pedal with an inch of mud on your shoe. I’ve ridden on these pedals for five years and I’ve never had a problem. I’ve worn out a few sets of cleats, but that’s expected.

