Since they are icons I am not sure that small parts will be readily available for them. If they were shimano or something more mainstream then it might be a better deal. You might however visit your local trek dealer and check with the mechanics - sometimes they have stuff laying around such as another set of broken icon pedals - maybe the one you need. Shimano makes very good clipless pedals however I do not favor the double sided (recreative use) or the large platform (BMX or Downhill use). Their best pedal is the 959 which I have been racing on for about a year and they are by far better than any other pedal in their lineup. Good Luck.
-Ryan