Re: [CR]Superbe BB - What was so Unusual?

(Example: Component Manufacturers:Avocet)

Date: Mon, 8 Oct 2007 13:29:29 +1000 (EST)
From: "David Benson" <bensondoc@yahoo.com.au>
Subject: Re: [CR]Superbe BB - What was so Unusual?
To: David Snyder <dddd@pacbell.net>, Classic Rendezvous <classicrendezvous@bikelist.org>
In-Reply-To: <002901c8094c$72ec4370$4001a8c0@compaq>


I have read somewhere that the Superbe axle taper was 1.8 degrees, but in my experience, the 109mm Superbe bottom bracket is interchangeable with Campagnolo 109
or 111mm symmetrical bottom brackets.
DB
Ak
NZ


--- David Snyder wrote:


> All tapered square spindles have 2-degrees taper,
> and all Superbe/Sprint
> spindle tapers were "superbe" (Campy, ISO) sized
> (about 0.2mm smaller
> between opposite flats than JIS tapers).
>
> It's the odd 108mm length of the "later" (~1980's)
> Superbe and Sprint
> spindles, in Campy ISO taper size (same 2-degree
> taper angle as JIS) that
> makes these spindles unique and, as a long-obsolete
> wear part, hard to find.
>
> FWIW, an "effective length equivalent", spindle in
> JIS taper would be 103mm,
> the same as 7410-series (~1994-1995) Dura-ace.
> Perhaps NR Pista would be
> close?
>
> David "usually just uses whatever minimally clears
> the chainstay" Snyder
> Auburn, CA usa
>
>
>
> > In a message dated 10/7/07 5:24:07 PM,
> mitch.harris@gmail.com writes:
> >
> >> <<But what about taper? I thought that was the
> reason Grant and Riv.
> >> recommended a specific Phil BB for the Superbe.>>
>
>
> Chuck Brooks replied:
> > "Modern" BB spindles have a 2 degree taper, +/-
> seconds of a degree. It
> > is
> > not that critical, and seems to be one of those
> "over-hyped" "technical"
> > points which many folks agonize over. I think
> Grant made it out to be a
> > much
> > bigger deal than it is. I like Grant, but he
> does write good copy.
> >
> > The length of the spindle's tapered section and
> its cross sectional
> > thickness
> > is much more important than its taper.
>
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