Vitus 999 was the circa 1990 replacement for the Vitus 888 tubeset. It came in two versions, Vitus 999 and Vitus 999 Alpine. Both tubesets were plain gauge, like their predecessor. Near as I can tell, 999 was the imperial version of the 888 tubeset, as both used the same wall thicknesses (0.8mm main tubes, 1.0mm stays and 1.2 blades) but 999 used standard/imperial outer diameters. 999 Alpine used the same stays but 0.25mm thicker tubes and the thicker, optional, 1.5mm stays from the old 888 tubeset. It would be considered comparable to Columbus Gara.