I inquired a few weeks back about a compact(?) crank used by Ivan Basso on one of the Giro mountain stages. It wasn't a traditional compact crank as the chainrings were 52/36 compared to a compact which has a 50/34

The responses I received is that it was a compact crank but the chainrings were different.

I've not seen 52/36 chainrings anywhere. I've searched a few online retailers and catalogs but to no avail.

Are these chainrings available somewhere that I have not found? Or is this a special custom crankset made for team CSC?

Im currently using a traditional 53/39 but occassionally, I could use one extra gear on extended climbs. I've tried a 50/34 and I don't like loosing the top end.