I'm 6'1" with a 34" inseam (pants length, i.e.), and I ride a 61cm 1997 Bianchi Campione D'Italia (which, BTW, I'll be selling as soon as it's out of the shop where it's getting tuned and detailed). Nishiki's an excellent vintage bike. A buddy purchased a new brown one in 1972 and loved it for years. I bought a yellow Peugeot at the same time. Enjoy your new Nishiki.