The 1985 Sekai 2600 was a club racer that sold for $325. The main triangle is Tange 900, which was a seamed, butted CrMo tubeset. Forks and stays are slightly downgraded with Tange Mangaloy. Angles are typical club racing for the era, with a 73 head and 72.5 seat. Wheelbase is spec'd 39.9", 16.4" chainstays, 1.9" rake, 22.6" top tube. Quoted figures are for a 23" frame.