I had terrible knee pain and shin splint type of stuff from SPDs ... it all went away when I switched to Speedplay frogs, because of the float. They aren't great as a pedal, but the only thing I seem to get along with. I eevn ride them on the road bike.
The first couple of rides felt like ice skating, and I noticed that I kicked my heel out every pedal stroke. Of course without a self-centering mechanism, you correct that in the end because it feels weird afterwards.
I had terrible knee pain and shin splint type of stuff from SPDs ... it all went away when I switched to Speedplay frogs, because of the float. They aren't great as a pedal, but the only thing I seem to get along with. I eevn ride them on the road bike.
The first couple of rides felt like ice skating, and I noticed that I kicked my heel out every pedal stroke. Of course without a self-centering mechanism, you correct that in the end because it feels weird afterwards.