Dorado 2004 Crown set (lower crown with steerer, upper crown for MRD stem.

Lower tubes, 49.6mm OD on 140mm centres. 
Upper tubes, 39.8mm OD on 140mm centres.  Same as generation 1 Dorado.

Generation 1 Dorado (2002-2003, 30mm stanchions) is 42.2mm OD lower crown, 39.8mm upper crown at 140mm centres.
Generation 2 Dorado (2004-2004, 32mm stanchions) is 49.6mm OD lower crown, 39.8mm upper crown at 140mm centres. 
Generation 3 Dorado (2010-2018, 36mm stanchions) is 46.8mm OD lower crown, 39.8mm upper crown at 149.6mm centres.