In a message dated 12/17/03 8:14:25 PM Pacific Standard Time,
lists@PeterWhiteCycles.com writes:
> Sorry, but there is absolutely no truth to this. Although this myth has
> been
> around since Super Record rings were introduced, there is neither any
> empirical evidence that this is true, nor any reason why it should be true.
>
> Any deflection you see in chainrings is from flexing of the seat tube
> between the front derailleur and the BB shell, and flexing of the bottom
> bracket axle. There are no lateral forces on chainrings, except during
> shifts.
>
I beg to differ. Nobody told me this story, it's something I noticed (on a
VERY stiff frame that I made) by looking down while pedaling. Back when I was
pretty strong. Theoretically, you may be right, but what is empirical evidence
if not seat-of-the-pants experience and observation?
Stevan Thomas
Alameda, CA