Going out to the garage with a machinists ruler, I find that putting the center
of a crank arm flat on the table and measuring the gap between the table and
the center of the pedal hole yields these numbers;
Sugino XD2 27 mm
Late Model Ultegra 20 mm
Vintage Shimano 600 12.5 mm.
Pretty wide spread. No pun intended. Total Q will depend on BB length of
course. You need enough so the inner chain ring clears the stay, but no so much
that the front derailler cannot shift to the larger chain ring, or that yields
an impossible chain line.
Is there some sort of comprehensive table on this data?
________________________________
From: Michael Hechmer <mhech...@gmail.com>
Both the Cospea and and the White are
lower Q than the XD2, which I also appreciate. Happy shopping.
Michael
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