I picked up this Novara Randonee for my wife last year. Its a 1997 bike, so not exactly vintage, with RSX 7 speed components. Center to center, the seat tube measures at 35 cm! Center to top, it measures a whopping 42 cm. The top tube measures a reasonable 53 cm, and the chain stay (center to axle) measures 44 cm. The bike has 26 inch wheels, braze-ons for both front and rear racks, braze-ons for fenders, and two bottle holders. Thats quite a bit in pretty limited real estate.