After buying some Look Keo Blade 2 pedals I used them for the first time today. My 15 mile ride to work was all ok however my 30 mile hilly ride home was not so good. Whenever I was climbing both in and out the saddle the right pedal/cleat was really clicky. It was almost like a popping noise.

People riding with me thought it was the bike as it was so loud. Has anyone experienced this? Can anyone advise what might be causing it? Before I take them back and risk looking stupid I'd rather try and solve the problem.

As always thanks in advance for your advice