We went through this same thing in another thread recently. They are speedplay X-Series pedals with chromoly spindles.

Here is how to identify Speedplay road pedals. Look for the dimples/channels, or lack thereof...

These are Speedplay Ultra Light Action easy release pedals. Ultra Light Action pedals can be identified by the fact that they have eight dimples, four on each side. You can see the four dimples in the red section on the top of this pedal...



These are Speedplay Zero Pedals with adjustable float. These come in ChroMo, Stainless, Ti, ultralight "Nanogram" and track specific flavors. This pedal does not have dimples but channels which wrap completely around both sides of the pedal.


This is the original Speedplay X-Series with free float. Both sides of this pedal are completely smooth. If you see no dimples or channels on the top or bottom of the pedal then it is an X-Series.



-Tim-