Look Keo |
You also want your cleats to have a relatively wide platform, so you can distribute that force over a wider area, reducing the stress of hard pedaling on the cleat/pedal system. While mountain/touring bike shoes have two holes on the sole, road shoes will have three (most common, pioneered by Look) or four holes (Speedplay and some Time systems).
Time iCLIC |
For those of us with heavy frames (I mean body, not bike!) the issue of float is important. Float allows the cleat to move from side to side on the pedal, theoretically making it easier on the knees than a fixed cleat that doesn't move once it's on the pedal. Time's iClic cleats have about 5 degrees of float, Shimano offers fixed (0 degrees of float) or 6 degrees of float. Look's Keos can be outfitted with zero float, 4 degrees of float or 9 degrees. Speedplay Zeros can be adjusted by set-screws in the cleat to an infinite number of settings in between zero and 15 degrees. Other Speedplay models have fixed non-adjustable floats.
Speedplay Light Action |
I still have my fear of getting stuck on the pedal and ignominiously falling over in front of a crowd. I also wanted a system where I could choose different float angles. I still don't know how much I'll need or even if I need any at all. I also wanted a system that had replacement cleats readily available. I ended up choosing the Look Keos. I tried the black cleats, no float: Wow, if you're even mildly claustrophobic, you're not gonna like no float. You may like them if you're into the kinky bondage scene though. I also tried the red cleats, which provide 9 degrees of float. The foot movement was disconcerting and I decided I didn't like so much float (which is strange, because my Speedplay Frogs had at least that much float!). I'm now using the gray cleats which provide 4 degrees of float.
Shimano Ultegra |
By the way I lifted the pedal photos from www.competitivecyclist.com. I don't mind recommending them because so far, they've treated me right and their prices can be very good, particularly for closeouts. (I'm not in any way affiliated with them, I just like them)