I stopped in this bicycle recycler today. I got to go through their equipment drawers. I found three Sram shifters, spd pedals, a skewer, all for 9pounds.
I went there 4 years ago when I had a freewheel come apart on a ride along the Union Canal. The mechanic looked at it and told me how to easily repair it myself. He got me the correct ballbearings and grease.
Its a good place to get a used/recycled bike. But you have to stop in frequently to check on their stock.