I am just getting used to clip list pedals, and the Look CX6 pedals came with my used bike that I just purchased. I then bought Shemano no shoes and the correct clips and all seems to be working reasonably fine.

I am wondering what the dial on the back of the pedals or four. The bike is a 2009 vintage and I'm guessing the pedals date to that time or before.

Also, the left pedal seems a little harder to disengage than the right I really do not want to break my neck fighting to release the clips as I learned how to use them correctly.