Re: [CR]re: Stays? Seat or chain or both?


Example: Books:Ron Kitching
Date: Tue, 22 Jun 2004 10:43:58 -0500
Subject: Re: [CR]re: Stays? Seat or chain or both?
From: "Todd Kuzma" <tullio@TheRamp.net>
To: Steven Willis <smwillis@verizon.net>, <LouDeeter@aol.com>, <classicrendezvous@bikelist.org>
In-Reply-To: <002201c45877$6f8d4be0$c39c598a@t1s9z1>


on 6/22/04 11:39 AM, Steven Willis at smwillis@verizon.net wrote:
> If all else is the same larger diameter or thicker walls means stiffer, and
> longer gives more movement at the end. Maybe you can not feel it but the
> science does not change.

The "science" also says that the rear triangle is an inherently stiff triangulated structure. The reason that small diameter, thin-walled stays can be used is that the geometry provides the necessary strength. The front triangle is not triangulated in three dimensions. So, it requires much larger diameter tubing to have sufficient lateral and torsional stiffness.

Todd Kuzma
Heron Bicycles
Tullio's Big Dog Cyclery
LaSalle, IL 815-223-1776
http://www.heronbicycles.com
http://www.tullios.com