Hi, I am impressed by the work done on the main table but I must admit that most of the data is beyond my interest level. What DOES interest me is to find the center to center chainring spacings for road bikes with the corresponding cable pulls of their shifters for tabulation purposes. Rear shifting is well tabulated (
http://en.wikibooks.org/wiki/Bicycle...ing_Dimensions) but front shifting is not.
My own casual observations, (no road bike of my own), note that triple chainrings are often at about 1cm centers, but that some others look more like 6mm. Any ideas where spacings and cable pulls are to be had? Honestron, London.