Patric I agree that until we see the 'missing link' catalogs, literature, or bikes there will be many gaps and unknowns. I'm getting close to a final draft and have been dedicating a couple of hours each night to this endeavor. The one thing I am missing is a picture of a 60T "cloverleaf cutout" chain ring. I am not talking the D&J ring with the four attaching bolts (shown below)
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but a 60T 1/2" pitch ring like this
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Does one exist or is the D&J the only 60T "cloverleaf cutout" ring? V/r Shawn