refer to this link for comparisons of tubing, I find the tables 1-4 particularily useful.
http://www.desperadocycles.com/Editorial_Articles.htm
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear