Assuming rear derailleur cage length can handle, what is the largest cassette I can use with an 8 speed Campy Record crank (53/39) ? I'm open to mixing with a 9 or even 10 speed drive-train but am concerned about chain width. From what I can tell, the largest 8 speed cassette is an 11-26. Is this the best I can do with the 8 speed crank?