From: r cielec <teaat4p@yahoo.com>
"Shannon, Steve, Doug: After all that discussion of chain stay length - Did you ever receive answers to the (your) original questions: 1) Date of change of International geometery? 2) Chain stay length of the Internationals, before and after geometery change?"
Hi Richard, fwiw, the dimensions of my Internationals are as follows:
1971 International, ser no F1450 (same size and color as Sheldon's) chainstays: 17 3/8", measured from end of hub axle to end of BB axle wheelbase: 41 3/4" top tube: 23 1/4" c-c
1974 International, ser no WL4004059 (copper color) chainstays: 16 5/8", measured from end of hub axle to end of BB axle wheelbase: 40 5/8" top tube: 22 1/2" c-c (all dimensions are in Imperial units, as is befitting. Besides, that's what my tape measure uses)
I think the date of the geometry change was in the postings, but it required combining the right ones. '72 to '73, maybe?? When comparing dimensions, don't forget that the top tubes got a lot shorter at the same time! This was true across the model lines, I'm guessing, since my dear departed '75 Gran Sport had a rather short top tube.
Steve Kurt
Peoria, IL