Re: [CR] Circa '68 Masi Pista BB Shell Questions

(Example: Framebuilders:Dario Pegoretti)

Date: Tue, 19 Jan 2010 08:50:25 -0600
From: "John Thompson" <johndthompson@gmail.com>
Organization: The Crimson Permanent Assurance
To: Dean Nixon <vintage.lugged@gmail.com>
References: <a73074c11001161618l70ec9a6dw28b3f47a49956aed@mail.gmail.com>
In-Reply-To:
Cc: classicrendezvous@bikelist.org
Subject: Re: [CR] Circa '68 Masi Pista BB Shell Questions


Dean Nixon wrote:
> I was in the process of installing a campagnolo BB (Italian threaded,
> 70-P-120 spindle, thin walled cups) on a circa late 60's Masi pista when I
> noticed that the adjustable cup protruding a little more than normal from
> the BB shell. I pulled out the calipers and sure enough the shell is 68mm
> wide. Now I'm confused. Italian threading (RH threads on fixed cup) but a
> 68mm shell. A few things are going through my mind:
>
> 1) Shell has been shortened to accommodate a 68mm spindle?
> 2) BB should be the 'thick walled cups' version
> 3) BB has mismatched parts (different years but same model or different
> models same year)

Pista cups didn't come in the "thick wall" version with the rifling; that was strictly a road (Strada) feature. --

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