=?iso-8859-1?Q?Re:_First_Aero_Rims_Re:_=5BCR=5D_Light_wheels_-_WAS_L=FCde?= =?iso-8859-1?Q?rs_-_Masi?=

(Example: Racing)

From: "Charles T. Young" <youngc@ptd.net>
To: <classicrendezvous@bikelist.org>
References: <FDEB2A24-9E55-11DA-BAC0-00039356BD92@ivycycles.com>
Subject: =?iso-8859-1?Q?Re:_First_Aero_Rims_Re:_=5BCR=5D_Light_wheels_-_WAS_L=FCde?= =?iso-8859-1?Q?rs_-_Masi?=
Date: Wed, 15 Feb 2006 20:18:05 -0500
reply-type=response

Sure. Bandaged (cotton cloth/shellac) stayer wheels go back a pretty good bit. Obviously an unintended (and likely unrecognized) benefit because the purpose was to avoid a rolloff at speed and, for that application, the pacing machine was providing the aerodynamic advantage.

Charlie Young
Honey Brook, PA


----- Original Message -----
From: Brandon Ives
To: David Bilenkey
Cc: classicrendezvous@bikelist.org
Sent: Wednesday, February 15, 2006 2:05 PM
Subject: First Aero Rims Re: [CR] Light wheels - WAS Lüders - Masi



>I know there were a few aero profile rims in the classic era. The earliest
>I remember were the Saavedra (sp?) and Araya in the early 80s.
> Were there any aero profile rims before these?
> best,
> Brandon"monkeyman"Ives
> retro-techno-weenie in
> Vancouver, B.C.
>
>
> On Wednesday, Feb 15, 2006, at 10:24 US/Pacific, David Bilenkey wrote:
>
>> This is verging off topic, but all I'll say, is it might _feel_ lighter,
>> and
>> more lively to have lighter wheels, but the numbers say it isn't
>> actually
>> faster. Give me aero over light, or aero and light if I was swimming
> in
>> cash.
>>
>> http://www.analyticcycling.com/WheelsCritCorner_Page.html
>>
>> Read the http://www.analyticcycling.com/ site for a while, it might
>> surprise
>> you. Or maybe you already know this and you were just commenting on
>> _feel_.
>>
>> David
>> --
>> David Bilenkey
>> Ottawa, Ontario, Canada
>> dbilenkey@sympatico.ca
>>
>>
>>> -----Original Message-----
>>> From: classicrendezvous-bounces@bikelist.org
>>> [mailto:classicrendezvous-bounces@bikelist.org] On Behalf Of
>>> Jerome & Elizabeth Moos
>>> Sent: Wednesday, February 15, 2006 12:38 PM
>>> To: Fred Rafael Rednor; classicrendezvous@bikelist.org
>>> Subject: Re: [CR] Lüders - Masi
>>>
>>>
>>> We've had this dicussion before, but it goes far beyond the
>>> wheels part in determining total bike weight. The rims and
>>> tires have a large moment arm about the axis of rotation (the
>>> hub axle), while everything else, including the frame, has
>>> essentially zero moment arm, so when it comes to accelerating
>>> and braking, rim weight counts for everything, while frame
>>> weight counts for nothing. So a bike with light wheels will
>>> feel lively, while a lighter bike with heavier wheels will
>>> feel more sluggish. This is the fundamental reason why I
>>> don't believe modern bikes are better, or maybe even as good,
>>> as those from the 70's. As the rear cluster has gone from 5
>>> to 6 to 8 to 10 cogs, dish has had to increase, leading to
>>> higher drive side spoke tension, which led to heavier rims to
>>> withstand it. And acceleration and braking have suffered,
>>> although the latter has been offset by better brakes. An
>>> early 70's bike with Fiamme Ergals will usually feel more
>>> lively than a $5000 modern carbon fibre wonder.
>>>
>>> Regards,
>>>
>>> Jerry Moos
>>> Big Spring, TX