I had some Hunts on there with 23mm width (might be internal) The year before I believe the paint job was nearly identical save for a small blue colour flash on the rear stay and the fork. I bought it with some Ultegra wheels that easily cleared 25mm tyres as well.
Mine (of the same paint job) wouldn’t fit a 25mm GP4000sii between the chainstays. That was on wider rims though - 23mm external.