I have two pairs of these pedals, and use one pair of shoes to ride both
bikes (not simultaneously!).
I am a right foot releaser.
I have had problems getting my right foot out of one right pedal for a
good while, but the other right pedal has always been easy to get out
of. I have adjusted the release tension on the troublesome pedal a
couple of times, and this seemed to help at first, but I still have
trouble sometimes. It seems as if releasing gets more difficult as the
ride progresses (it's easy at first, but harder toward the end of the
ride). I have to plan ahead for stops, so that I can be sure of getting
unclipped in time.
On my last couple of rides, the "easy" right pedal has started to give
me problems. Yesterday, I was already in my garage, and couldn't
unclip! (Luckily, I was able to reach a door frame and hold myself up
until I could unclip.)
Since the common denominator seems to be that I use the same shoes (and
cleats) on the different pedals, I checked the condition of the cleat on
my right shoe. It is getting fairly thin, but I've used cleats that
were more worn than this one. I tried to trim plastic that was sticking
over the edges of the cleat, but I didn't notice any improvement on
today's ride.
I typically replace the right cleat two or three times before putting a
new left cleat on. I'm planning to go get a new pair of cleats
tomorrow, so I can try replacing the cleat.
I've had to replace a spring on one of the right pedals; I'm fairly sure
it was on the troublesome pedal, but not positive.
Does anyone know, or have a theory about, what might be wrong?
It's embarrassing (and sometimes painful) to fall over at zero speed!