Nagasawa seat tube 525mm CTT. Top tube is 540mm CTC. Ends are 120mm. Seat tube is 27.2mm. Dura Ace Hub Set 7600/120/36H Araya GOLD 16B Asahi Spokes Vittoria Rally rubber natural color DID Racing Pro Stainless Chain SILVER MKS Track Bike Chain Tensioners NJS Dura-Ace chainring NJS 46t Dura-Ace cranks 7600 / 165 mm Bkkfixed 19t Nitto NJS Jaguar SP72 seat post, 44mm / 27.0mm Nitto NJS NJ PRO AA stem aluminium 90mm Nitto B123AA Drop Bars aluminium 36cm Kashimax Peko Dome top tube protector Brooks saddle B-17 Special Black