Here's a few photos of a 151 BCD Triple that shows how it goes together.
http://picasaweb.google.com/
Kurt Sperry Bellingham, Washington USA
2009/5/25 CyclArt Shop <shop@cyclart.com>:
> Jack,
>
> We recently restored (and showed at the SDCBS) a 1965 Cinelli with an original factory 151BCD triple. The chainring set was 45-49-52t. It used a longer bolt and nut set, with the inner ring hanging off to the inside, and a longer x3 spindle.
>
> Before you scratch your head at why, here's my theory: Given the shift quality of the early Record rear derailleurs, a front shift on a tight triple like that would have been both easier and more positive than a rear shift.
>
> Greg Reiche
> CyclArt
> Vista, CA USA