Re: [CR]Braze-on CP Brake Boss Question

(Example: History)

Date: Wed, 12 Oct 2005 09:48:14 -0400
From: "James Swan" <jswan@optonline.net>
Subject: Re: [CR]Braze-on CP Brake Boss Question
In-reply-to: <JJEEKLDDELHGFDGDBELBCEOJCGAA.avitzur@013.net.il>
To: Amir Avitzur <avitzur@013.net>
References:
cc: Classicrendezvous <classicrendezvous@bikelist.org>

Hi Amir,

I recently made a set of bosses for Mafac Racers. Take a look:

http://centerportcycles.com/pages/framebuilding/framebuilding3.html

Then I heard that Mike Barry at Mariposa had a run of them made up.

Regards, Jamie Swan - Northport, N.Y. http://www.centerportcycles.com (mapped) http://www.limws.org http://www.liatca.org http://www.cabinfeverliquidations.com

On Oct 12, 2005, at 9:31 AM, Amir Avitzur wrote:
>
>
> I just tried to mount Mafac competition brake arms on Mafac Braze-on
> Canti
> bosses (not yet brazed on),
> and 3 dimensions were off:
>
> Inside spring diameter (bigger on Competition)
> Spring attachment point (closer to center of pivot on canti-boss)
> Length of boss/pivot-pin (longer on canti boss)
>
> Several bikes in Jan's "Golden Age" book have this kind of set-up,
> but all seem to use custom bosses.
>
> Does anybody know if there are special braze-on bosses for center-pull
> brakes?
>
> Are they still available anywhere?
>
> Amir Avitzur
> Ramat-Gan, Israel