Re: [CR] Drop Bolt alternatives for Mafac Racers

(Example: Racing:Jean Robic)

Date: Wed, 7 Apr 2010 21:17:24 -0700 (PDT)
From: "scott davis" <francopedia@yahoo.com>
To: classicrendezvous@bikelist.org
Subject: Re: [CR] Drop Bolt alternatives for Mafac Racers


Mafac  made some adjustable reach mounting plates.  The mounting plates (on the back) had  vertically oval holes for the fitting of the center bolts.  This allowed you to raise or lower the plate together w/ the caliper.  The plates came on some of the Competition models and are interchangeable w/ Racers.   You could try enlarging (ovally) the existing holes upward to get more drop.  Scott DavisMinneapolis, Minnesota USAsdbicyclegarage.com -------------------------------------Message: 7 Date: Wed, 07 Apr 2010 19:28:11 -0400 From: Harvey Sachs <hmsachs@verizon.net> Subject: Re: [CR] Drop bolt [alternatives] for Mafac Racer To: jonswriter@att.net, Classic Rendezvous     <classicrendezvous@bikelist.org> Message-ID: <4BBD150B.6030704@verizon.net> Content-Type: text/plain; charset=us-ascii; format=flowed

I haven't tried this, Jon, but for the rear you might just be able to  kludge this up with parts from a Pletscher rack mounting system.  want  me to send a set of leftovers?

harvey sachs mcLean va

Jon Spangler wrote:

Listers,

One of the biggest issues with our Peugeot UO-18s was that Mafac Racers  no longer reached the braking surfaces of the 700C alloy (OT Mavic Open  Pro) rims that replaced the mixte's original steel 27" Rigida  "death-in-the-wet" rims. It took me a long time to find two sets of used  Weinmann 750 centerpulls, and I still have the original Racers in the  garage. And since (in all likelihood) I will be going through this  process again with another "perfect-fit" UO-18 Mixte, I'd just as soon  use up the inventory I have this next time around. But I still need  another 5-8 MM of brake reach out of those Racers.

Have any of you ever heard of, thought about, designed, made, seen,  purchased, or used a drop bolt (similar in concept to the ones used for  Campi and Suntour Superbe brakes) for Mafac centerpulls?

<snip>