Speedplay x's. I've just started riding again after a 20 yr. hiatus.... I've never used clipless pedals before. A friend of mine recommended them because he knew I had some knee problems and he heard they were the easiest on the knees. Well, I've never tried any other pedal, but these Speedplays are fantastic! I can clip into them and be off, while my SPD friends are still "fiddling around with clipping in". Although its more of a "stomp..stomp.... and pedaling" than clipping in. And clipping out was much easier than I expected, just over and up. I can only judge by the comments my friends made after watching me start up with speedplays. They were very impressed, and it wasn't with my riding ability!! I'm pretty sure two of them now have Speedplays on their Christmas wish lists! Now I was worried about the size of the pedal platform, so the other thing they recommended is that I buy a very hard soled riding shoe because of the small pedal platform, that way I wouldn't feel the smaller platform (at least in theory). I took their advice of this too, and I can't tell any difference from my old regular pedals. On a couple of rides, I felt like I could barely feel the right pedal after about 20 miles, but it was only a slightly different sensation from the left pedal. After watching me ride for a bit, they all thought the float might be excessive, but as a serious rec / fitness rider, over 40, overweight ( but working hard on that), with some knee issues, I found the float to be fine, in fact I really liked that i could change my knee angle (more in or out) without causing any extra stress on my knees or ankles. So bottom line on this babble, is I don't think you can go wrong with these pedals, but make sure yours shoes have a hard sole. Now another topic, how do people walk in these things..... they are more dangerous than scuba flippers! 🙂 I've never felt more unstable just walking across my garage floor! I was a bit envious of one rider, using his mountain bike shoes. His "cleat" was recessed into the shoe and he could walk around safely.