Note: The frame measurements were made from a single unfinished frame. I have found very consistent production accuracy on any parts I have measured over the years. There is always the possibility that they may have made minor changes during the several years producing the +/- 140 bikes.
My numbers were derived using standard micrometers and Starrett rules. The angles were more of a challenge and may be off by a degree one way or the other. You will note that the three ‘vertical’ frame members reflect 75, 74, and 73 degrees front to back. Chances are they were all intended to be the same. Either my measurements may be off or their jigs ended up differing a little.
(Click images to enlarge)
