Re: Here's your freakin equation (Re: [CR]The canard of lightweight - Simplification)

(Example: Racing)

Date: Tue, 25 Feb 2003 17:48:25 -0800 (PST)
From: "wayofftheback" <wayofftheback@yahoo.com>
Subject: Re: Here's your freakin equation (Re: [CR]The canard of lightweight - Simplification)
To: Brandon Ives <monkeylad@mac.com>
In-Reply-To: <7A47F7C3-492A-11D7-A5AA-00039356BD92@mac.com>
cc: classicrendezvous@bikelist.org

Brandon,

First, the equation is not empirical data. Empirical data are data measured from actual events. (The gold standard is double blind.)

Second, the equation is really only one small part of the weight issue. In paritcular, fails to account for wind resistance, them most important resistance a cyclist faces--far greater than bike weight. It also fails to account for mechanical resistance and numerous other factors. Consequently, by itself the equation is of no use in this discussion.

On that note, I agree--let the horse lie.

Regards,

John Taglia
Chicago, Illinois


--- Brandon Ives wrote:


> On Tuesday, February 25, 2003, at 03:51 PM,
> wayofftheback wrote:
> > Again, I defy anyone here to show empirical data
> that
> > show that extreme weight savings materially
> affects
> > performance. Really, show me the data.
>
> Here's your really basic physics equation:
> F=M*A
> F= Force
> M= Mass (kg)
> A= Acceleration (m/s squared)
> Let's call A 5 and have it be static.
>
> 5*6.8(15 lb bike)= 34
> 5*9(20 lb bike)= 45
>
> We all know mass isn't really the same as weight,
> but for the basic
> question of if a 15 or 20 pound bike performs better
> it'll work. The
> 15 pound bike takes less force to move down the
> road, thus performs
> better. Now does anyone have the formula that says
> more force required
> equals better performance. Scientists please
> nitpick with more
> accurate equations since I'm no scientist, I just
> pay them. Can we now
> leave this dead horse alone?
> ciao,
> Brandon"monkeyman"Ives
> SB, CA
>

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