Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

MAFAC Brakes and Squeaking

Search
Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

MAFAC Brakes and Squeaking

Thread Tools
 
Search this Thread
 
Old 11-20-18, 09:41 PM
  #26  
Senior Member
 
capnjonny's Avatar
 
Join Date: Nov 2014
Location: Saratoga calif.
Posts: 1,049

Bikes: Miyata 610(66cm), GT Vantara Hybrid (64cm), Nishiki International (64cm), Peugeot rat rod (62 cm), Trek 800 Burning Man helicopter bike, Bob Jackson frame (to be restored?) plus a never ending stream of neglected waifs from the Bike exchange.

Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
Quoted: 339 Post(s)
Likes: 0
Liked 632 Times in 229 Posts
Does anyone have any preference between Mafac Racer and Mafac Dural forge brakes?

I just acquired an older (70's?) Bob jackson frame and I am planning on hanging an odd assortment of components on it, things I have been acquiring in the work shop and was saving for something special.

I want it to be an international assembly .
Bob Jackson Frame
Stronglight cranks,
Mafac brakes,
Weinman levers (With 2 inch riser bars)
Suntour Superbe front derailleur , Suntour ratcheting Stem shifters
Ofmega "Premier" or Sachs "Centera" rear
Campi seat post
Brooks B 17
Nisi tubular rims on Campi hubs.
capnjonny is offline  
Old 11-21-18, 05:59 AM
  #27  
Mike J
 
Join Date: Nov 2013
Location: Jacksonville Florida
Posts: 1,588

Bikes: 1975 Peugeot PX-50L, 1971 Peugeot PX-10, 1974 Peugeot PX-8

Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 392 Post(s)
Likes: 0
Liked 6 Times in 6 Posts
Originally Posted by capnjonny
Does anyone have any preference between Mafac Racer and Mafac Dural forge brakes?
I don't believe there's any difference in the operation of the 2 models, but I've never had any problem with the Racers. They're quite common and probably easier to source.
jj1091 is offline  
Old 11-21-18, 08:54 AM
  #28  
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 24,418
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 3,720 Times in 2,537 Posts
I always wanted to try the Compass toe-in washers, but I keep forgetting to order them. I worked in a bike shop in the '70s, so toeing in Mafacs is something I have done hundreds of times. I never really liked doing it on Mafacs though. A bit of a pain.
unterhausen is offline  
Old 11-21-18, 09:21 AM
  #29  
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Posts: 16,897

Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 1865 Post(s)
Liked 665 Times in 507 Posts
Originally Posted by nlerner
I always thought it was a feature, not a bug, when it came to MAFAC brakes.
Yep, should never see a PX10 with a bell!
Road Fan is offline  
Old 11-21-18, 09:25 AM
  #30  
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Posts: 16,897

Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Mentioned: 49 Post(s)
Tagged: 0 Thread(s)
Quoted: 1865 Post(s)
Liked 665 Times in 507 Posts
Originally Posted by jj1091
I don't believe there's any difference in the operation of the 2 models, but I've never had any problem with the Racers. They're quite common and probably easier to source.
I read somewhere (maybe here in days of yore) that the earliest MAFAC centerpulls were marked "Dural Forge," but the name was changed to "Racer." I think at that time the brakes were otherwise identical.
Road Fan is offline  
Old 11-21-18, 10:05 AM
  #31  
tantum vehi
 
mountaindave's Avatar
 
Join Date: Jul 2008
Location: Flathead Valley, MT
Posts: 4,441

Bikes: More than I care to admit

Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 1168 Post(s)
Liked 993 Times in 492 Posts
Originally Posted by Cycologist
Thank you.

I'm going to look for that SJ, and it will keep it all French!
I did exactly that for my wife’s Gitane. The original Simplex plastic FD could just barely handle two chainrings. Check the link in my sig. I got a triplizer from Red Clover and she has loved it. (I did the same on my Gitane but also replaced the RD with a long cage Simplex - neither are period correct, but the bike gets used!)

Originally Posted by unterhausen
I always wanted to try the Compass toe-in washers, but I keep forgetting to order them.
Good call, I was was just about to mention them. A light filing of the originals with a small round file would of course achieve the same effect.

Last edited by mountaindave; 11-21-18 at 10:08 AM.
mountaindave is offline  
Old 11-21-18, 10:24 AM
  #32  
Bike Butcher of Portland
 
gugie's Avatar
 
Join Date: Jul 2014
Location: Portland, OR
Posts: 11,654

Bikes: It's complicated.

Mentioned: 1300 Post(s)
Tagged: 0 Thread(s)
Quoted: 4690 Post(s)
Liked 5,837 Times in 2,297 Posts
Originally Posted by unterhausen
I always wanted to try the Compass toe-in washers, but I keep forgetting to order them. I worked in a bike shop in the '70s, so toeing in Mafacs is something I have done hundreds of times. I never really liked doing it on Mafacs though. A bit of a pain.
Save yourself $9. Use a rat tail file and convert a pair yourself.

Doesn't take much imagination to figure it out:

__________________
If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
gugie is offline  
Old 11-21-18, 05:42 PM
  #33  
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 24,418
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 3,720 Times in 2,537 Posts
yeah, the $9 vs. file calculation is why I "forgot," I think.
unterhausen is offline  
Old 11-22-18, 07:53 AM
  #34  
Senior Member
 
Join Date: Feb 2015
Location: Chicago
Posts: 93

Bikes: 1973 Jack Taylor ToB, 1974 or '75 LeJeune Champ du Monde (possibly from the Carre Shop), 1971 Motobecane Le Champion, 1980s Rodriguez frame (future 650b conversion project)

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked 7 Times in 6 Posts
Originally Posted by capnjonny
Does anyone have any preference between Mafac Racer and Mafac Dural forge brakes.
One difference is brass bushings we’re used on the older Dural Forge model vs red delrin plastic on the later brakes marked “Racer.” Competitions also used brass bushings so that seems like a potentially meaningful difference.
Best,
Leif
chicago
JT1973 is offline  
Old 11-24-18, 02:03 PM
  #35  
Newbie
Thread Starter
 
Join Date: Nov 2018
Posts: 62
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked 8 Times in 6 Posts
Originally Posted by gugie
Save yourself $9. Use a rat tail file and convert a pair yourself.

Doesn't take much imagination to figure it out:

Looks like all the squeaking now has gone on the MAFAC's and the new pads really do a nice job. I like the idea of sanding the washer down a bit to adjust for the toe in. I think combination of dirty rim and 0 deg of toe in were the issue here.
Cycologist is offline  
Old 11-24-18, 02:11 PM
  #36  
Banned
 
Join Date: Aug 2013
Posts: 6,480
Mentioned: 93 Post(s)
Tagged: 0 Thread(s)
Quoted: 1361 Post(s)
Likes: 0
Liked 425 Times in 284 Posts
Me like French horns.

A squealing brake is a 'happy' brake.
crank_addict is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tramptrade
Bicycle Mechanics
57
08-12-17 04:44 AM
Bobmas421
Classic & Vintage
3
10-27-14 07:08 PM
Tourn
Bicycle Mechanics
9
09-17-14 12:32 PM
bschmukler
Singlespeed & Fixed Gear
24
05-31-11 11:08 PM
chico1st
Bicycle Mechanics
4
08-31-10 10:12 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.