Re: [CR] Inventment cast one piece headtube and lugs

(Example: Framebuilders)

Date: Tue, 25 Jan 2011 10:26:26 -0600
From: "John Thompson" <johndthompson@gmail.com>
Organization: The Crimson Permanent Assurance
To: classicrendezvous@bikelist.org
References: <20110125161350.DDD9EBA08C@ssh-linux2.ece.ubc.ca>
In-Reply-To: <20110125161350.DDD9EBA08C@ssh-linux2.ece.ubc.ca>
Subject: Re: [CR] Inventment cast one piece headtube and lugs


On 01/25/2011 10:13 AM, donald gillies wrote:
> In article, John Thompson <johndthompson(AT)gmail.com> Writes:
>
>> [The plastic dropout insert] was funnel-shaped to guide the cable
>> end to the exit hole in the dropout. Without it, it would be
>> difficult to thread a cable through the chainstay.
>
> John, what exactly was the main benefit of through-the-chainstay cable
> routing? At the time I thought it was extremely cool and protected
> the shifter cable, but did it speed frame building any more than
> simply slapping a delrin bottom-bracket-routing guide on the underside
> of the bottom bracket, and having a cablestop cast into the dropout?
>
> Was there any real weight savings vs. the delrin cable routing?

Maybe a couple grams less. But you already guessed the real reason: it looks "extremely cool." :)

I probably shouldn't tell you how we made the little indent at the bottom bracket end of the chainstay...

--

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