[CR]Re: centerpulls

(Example: Production Builders:Teledyne)

From: "Thomas Rawson" <twrawson@worldnet.att.net>
To: <Classicrendezvous@bikelist.org>
Cc: "Jan Heine" <heine@mindspring.com>
References: <002c01c1caf1$6e93e5c0$0c56510c@gateway> <a05010401b8b5ec7bb9cd@[165.121.42.193]>
Date: Thu, 14 Mar 2002 08:08:14 -0800
Subject: [CR]Re: centerpulls

I knew you guys could do it! Thanks Jan.

Tom Rawson
Oakland, CA


----- Original Message -----
From: Jan Heine
To: Thomas Rawson
Cc: classicrendezvous@bikelist.org
Sent: Wednesday, March 13, 2002 10:06 PM
Subject: Re: centerpulls



> Here is a quick guide to Mafac centerpulls - since so many questions
> seem to come up. It may not be complete, and is to my best knowledge.
> Any additions are welcome.
>
> - Racer was the first model, introduced sometime around 1956. First
> ones were stamped "Dural Forge," but not "Racer" - there was only one
> model of Mafac centerpulls. Long reach. Bronze bushings until shortly
> before the arms were stamped "Racer." Even the "cheap" Racers
> featured forged arms.
>
> - Raid is even longer reach. Plastic bushings on the ones I've seen.
>
> - Competition: shorter reach, similar to standard reach Campy
> sidepull. Bronze bushings.
>
> - 2000: Reach like Racer, finish like Competition.
>
> - Top 63, Tiger, etc.: Special models that weren't in production for
> long. Different set-up (no slots for vertical brake shoe adjustment,
> but an extendable bridge) means they can't be used with brazed-on
> pivots (unless you get everything exactly right and never have worn
> brake shoes). Not sure about reach.
>
> The "Racer" was probably the best brake when it appeared. It was used
> not just in France, but also in Britain. Hilary Stone's book on
> Thanets states that they replaced all other brakes on these bikes
> (more or less). In France, they led to the demise of Singer's custom
> brakes (Racers were cheaper and better). In fact, many older bikes
> were retrofitted with brazed-on pivots, such as the Herse of 1956 PBP
> winner Baumann.
>
> Jan Heine, Seattle