Re: [CR]Short wheelbase frame design question

(Example: Framebuilders:Pino Morroni)

From: "Dan Christopherson" <danlchris@hotmail.com>
To: <classicrendezvous@bikelist.org>
Subject: Re: [CR]Short wheelbase frame design question
Date: Mon, 21 Mar 2005 15:01:11 -0800


Doug Van Cleve wrote:
>Can a modern (Keeper of the Flame) frameset be
>designed in the vein of Rigi, Flying Gate, Paris Galibier
>or whatever that would actually handle nicely but keep
>whatever attributes come from the super short
>chainstays? Obviously there is a rear weight bias that
>cannot be avoided, but otherwise? Maybe I have it
>wrong, but my impression is that these designs were
>mostly for novelty and didn't ride as well as
>normal designs. What do you think?

I think you are right, they don't ride as well. One problem I have heard about, but don't have too much experience with, is poor rear wheel tracking in a sprint - the wheel hops, actually skips sideways accross the pavement. I read about this somewhere in the last year, maybe some list members can recall this info?

Anyway, it shed some light on why the short, stiff frames I was building weren't an improvement for sprinting. But now I can't recall the actual mechanical process of the phenomenum. Anyone?

Dan Christopherson
Lopez Island WA