The frame is made in Japan (by Miyata. Flattened aero seat tube and down tube. Originally equipped with a Shimano 600 AX groupset from around 1980/81 Frame size: 575mm (middle to top of seat tube) • Saddle: Brooks Vitesse 600 Numbered bike Weight 10kg Super cool vintage racing car from the early 80s. With the very characteristic Shimano 600 AX aero groupset. Around 1980, the Japanese were very keen to create the most aerodynamic road racing bike on the market to date. They developed this aerodynamic frame built with Tange tubes, for this the AX aerodynamic group. Very special and cool bike that there aren't many of. “Very good condition, small signs of use, normal for a 45 year old bike” Tsunoda AERODYNAMICS Shimano 600 AX DURA-ACE AX good condition Frame material: Cr-Mo Color: Blue (azure) Seat tube: 56.5 cm (center to center) Toptube: 58 cm (center to center) Brake: Shimano 600 AX Brake lever: Shimano 600 AX Shifters: Shimano 600 AX Front derailleur: Shimano Dura-Ace AX Shimano 600 AX rear derailleur Crankset: Shimano 600 AX Front and rear hub: Shimano Dura-Ace EC Handlebar: NITTO Aerodynamics ADB125AA Handlebar stem: Nitto CrystemBlue 105 mm Pedals: Shimano 600ax with belt New tubular tires New blue handlebar tape