Re: [CR] Down tube / head tube ports?


Example: Racing:Roger de Vlaeminck

Date: Tue, 03 Oct 2006 10:33:29 -0500
From: John Thompson <JohnThompson@new.rr.com>
Organization: The Crimson Permanent Assurance
To: classicrendezvous@bikelist.org
Subject: Re: [CR] Down tube / head tube ports?
References: <4027-4521B0E3-3661@storefull-3277.bay.webtv.net>
In-Reply-To: <4027-4521B0E3-3661@storefull-3277.bay.webtv.net>


Bob Hanson wrote:
> The bike in the following photo reminded me to inquire about this. This
> one is located near the top of the down tube on a 1960s (?) Peugeot.
>
> http://c.im.craigslist.org/wz/SG/6EAeJTVmUawYPMqcqjV0aksgj6EV.jpg
>
> What the heck were all those large capped holes on frames intended for?
>
> Were these indeed lubrication ports? If so, would one just dump in a
> quart of 90 weight oil and hope it welled up enough in the bottom
> bracket shell to lubricate the bearings and/or spindle? I hope that
> would occur before the oil had accumulated a lot of rust and dirt in
> suspension - before it just leaked out around the BB cups and spindle.
>
> This just does not make sense to me. Appreciate any explanation behind
> the logic of these 50s/60s fittings.

Looks like it was intended for a steer tube lock device.

--

-John Thompson (john@os2.dhs.org)
Appleton WI USA