I searched but there were no specific responses regarding 9 or 10 speed compatibility of the FSA Gossamer crankset. I bought it used in good condition but I don't know what year is was made or if it's compatiable with my soon-to-be 10 speed drive train. I haven't bought the chain and cassette yet, so any advice on which to purchase would be great.
Is this going to be a trial and error type thing?
Does it depend on the space in between the chainrings or the thinkness of the chainrings themselves?
Here's a picture of the crank (below).
EDIT: The new Gossamer is 9 or 10 according to the FSA website, but mine is not new.