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

Durax Service Courses Crankset

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.

Durax Service Courses Crankset

Old 05-04-22, 08:04 PM
  #1  
obrentharris 
Senior Member
Thread Starter
 
obrentharris's Avatar
 
Join Date: May 2012
Location: Point Reyes Station, California
Posts: 3,936

Bikes: Indeed!

Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 1172 Post(s)
Liked 2,074 Times in 702 Posts
Durax Service Courses Crankset

These lovely, apparently unused cranks have come my way. I'm looking for any information:

Years of manufacture. 1940s? '50s?
Which makes of bikes might have worn such cranks?
Did Durax also make bottom brackets, other components?
Did Durax make other chainring configurations for these cranks a la TA and Stronglight?

My thanks in advance for any information you can provide.





Brent
obrentharris is offline  
Likes For obrentharris:
Old 05-04-22, 09:16 PM
  #2  
jamesdak 
Senior Member
 
Join Date: Aug 2010
Location: Utah
Posts: 7,778

Bikes: Paletti,Pinarello Monviso,Duell Vienna,Giordana XL Super(2)Lemond Maillot Juane (2) & custom,PDG Paramount,Serotta CSI,Fuji Opus III,Davidson Impulse,Pashley Guv'nor,Evans,Fishlips,Prologue TT,Y-Foil,Softride, Tetra Pro, CAAD8 Optimo,Klein Quantum II

Mentioned: 137 Post(s)
Tagged: 0 Thread(s)
Quoted: 1986 Post(s)
Liked 2,578 Times in 1,085 Posts
I don't know anything about this but it does have some of the same characteristics as the Stronglight 49 that came on the Stella I had for awhile.

Man I'd love to see those in person after a round of metal polish, I bet they'll gleam!!
__________________
Steel is real...and comfy.
jamesdak is offline  
Old 05-04-22, 11:59 PM
  #3  
verktyg 
verktyg
 
verktyg's Avatar
 
Join Date: Jul 2006
Location: SF Bay Area
Posts: 4,004

Bikes: Current favorites: 1988 Peugeot Birraritz, 1984 Gitane Super Corsa, 1981 Bianchi Campione Del Mondo, 1992 Paramount OS, 1990 Bianchi Mondiale, 1988 Colnago Technos, 1985 RalieghUSA Team Pro, 1973 Holdsworth

Mentioned: 198 Post(s)
Tagged: 0 Thread(s)
Quoted: 1018 Post(s)
Liked 1,134 Times in 615 Posts
Durax Cranks

Durax steel cottered cranks were high quality, made in France and date back to the 1930's.

I have a set of 3 arm Durax "Special Courses" cranks on my 1965 Swiss made Tigra. The chainrings are Simplex aluminum alloy mounted on 116mm steel carriers. It has a Campagnolo cottered BB. They have thicker arms like your 50.4mm BCD "Service Courses" cranks vs. the lighter ones listed on velobase.com.

There are 3 versions of the earlier models with lighter arms on velobase.com:

https://velobase.com/ListComponents....9-0aa62d6abeab





Your cranks probably date back to the 1950's - mid 1960's. The chainrings are stamped LV.492 - 'LV' refers to Louis Verot who started Stronglight. The 50.4mm BCD mount is an industry standard so you can use Stronglight 49 chainrings, T.A. chainrings and a slew of others.

There's a high probability the they are threaded for Metric 14mm x 1.25mm pedals.

verktyg
__________________
Don't believe everything you think! History is written by those who weren't there....

Chas. ;-)


Last edited by verktyg; 05-05-22 at 12:07 AM.
verktyg is offline  
Likes For verktyg:
Old 05-06-22, 07:28 AM
  #4  
obrentharris 
Senior Member
Thread Starter
 
obrentharris's Avatar
 
Join Date: May 2012
Location: Point Reyes Station, California
Posts: 3,936

Bikes: Indeed!

Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 1172 Post(s)
Liked 2,074 Times in 702 Posts
@verktyg thank you for the Durax lesson!
That Tigra is fabulous. I am one who loves the wild Swiss paint jobs. (Tigra, Mondia, Allegro "smoke")
Brent
obrentharris is offline  
Old 05-06-22, 01:58 PM
  #5  
verktyg 
verktyg
 
verktyg's Avatar
 
Join Date: Jul 2006
Location: SF Bay Area
Posts: 4,004

Bikes: Current favorites: 1988 Peugeot Birraritz, 1984 Gitane Super Corsa, 1981 Bianchi Campione Del Mondo, 1992 Paramount OS, 1990 Bianchi Mondiale, 1988 Colnago Technos, 1985 RalieghUSA Team Pro, 1973 Holdsworth

Mentioned: 198 Post(s)
Tagged: 0 Thread(s)
Quoted: 1018 Post(s)
Liked 1,134 Times in 615 Posts
1965 Tigra

Originally Posted by obrentharris View Post
@verktyg thank you for the Durax lesson!
That Tigra is fabulous. I am one who loves the wild Swiss paint jobs. (Tigra, Mondia, Allegro "smoke")
Brent
Brent,

A maroon fade Mondia or an all red Allegro had been on my list since the 70's. I started shopping for one of them in 2009 when I spotted my Swiss made 1965 Tigra on eBay. I'd never heard of that marque but as soon as I saw photo spread I was sold. All period correct components and so on, even a 1965 Brooks Pro!






The bike came from Stefan Schäfter at Speed Bicycles in Basel, Switzerland - https://www.speedbicycles.ch/ ... I highly recommend him. One of the best bike packing jobs I've ever seen.




verktyg
__________________
Don't believe everything you think! History is written by those who weren't there....

Chas. ;-)

verktyg is offline  
Old 05-06-22, 04:37 PM
  #6  
kroozer 
vintage motor
 
kroozer's Avatar
 
Join Date: Sep 2008
Location: Tepic, Nayarit, Mexico
Posts: 1,499

Bikes: 48 Automoto, 49 Stallard, 50 Rotrax, 62 Jack Taylor, 67 Atala, 68 Lejeune, 72-74-75 Motobecanes, 73 RIH, 71 Zieleman, 74 Raleigh, 78 Windsor, 83 Messina (Villata), 84 Brazzo (Losa), 85 Davidson, 90 Diamondback, 92 Kestrel

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
Likes: 0
Liked 55 Times in 43 Posts
I think Durax just made the crank arms, and you could put on whatever chainrings you wanted, such as the Stronglight and Simplex shown. I have some Durax 5-pin fluted cranks with an Automoto chainring, from the late 40's. That's a really nice set you have, "service courses" would indicate that it's for racing.
kroozer is offline  
Likes For kroozer:
Old 05-06-22, 07:08 PM
  #7  
zukahn1
Senior Member
 
zukahn1's Avatar
 
Join Date: Oct 2011
Location: Fairplay Co
Posts: 8,784

Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed

Mentioned: 21 Post(s)
Tagged: 1 Thread(s)
Quoted: 617 Post(s)
Liked 802 Times in 365 Posts
Originally Posted by obrentharris View Post
These lovely, apparently unused cranks have come my way. I'm looking for any information:

Years of manufacture. 1940s? '50s?
Which makes of bikes might have worn such cranks?
Did Durax also make bottom brackets, other components?
Did Durax make other chainring configurations for these cranks a la TA and Stronglight?

My thanks in advance for any information you can provide.





Brent
I have seen a some nice examples of Durax coaster brake track rear hubs from the 30's/40's. Pretty much all the Durax stuff I have seen was top end racing or track stuff very nicely finished for French stuff.

Last edited by zukahn1; 05-06-22 at 07:18 PM.
zukahn1 is offline  
Old 05-06-22, 09:31 PM
  #8  
Senrab62 
It's the little things
 
Join Date: Jan 2016
Location: Chicagoland
Posts: 622

Bikes: Too many, yet not enough

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 208 Post(s)
Liked 228 Times in 97 Posts
Originally Posted by kroozer View Post
I think Durax just made the crank arms, and you could put on whatever chainrings you wanted, such as the Stronglight and Simplex shown. I have some Durax 5-pin fluted cranks with an Automoto chainring, from the late 40's. That's a really nice set you have, "service courses" would indicate that it's for racing.

This is also my understanding. Durax made the crank arms, and rider would select whatever chainring they wanted.

Beautiful example OP! Very nice. What do you plan to use it on?
Senrab62 is online now  
Old 05-07-22, 09:42 AM
  #9  
obrentharris 
Senior Member
Thread Starter
 
obrentharris's Avatar
 
Join Date: May 2012
Location: Point Reyes Station, California
Posts: 3,936

Bikes: Indeed!

Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 1172 Post(s)
Liked 2,074 Times in 702 Posts
Originally Posted by Senrab62 View Post
This is also my understanding. Durax made the crank arms, and rider would select whatever chainring they wanted.

Beautiful example OP! Very nice. What do you plan to use it on?
It's part of an estate that I'm helping the owner to disperse, so it will most likely go up for sale. I'd love to have a bike to put it on, but French bikes of this age in my size (60-62cm) are almost non-existent.
Brent
obrentharris is offline  
Old 05-07-22, 12:30 PM
  #10  
bikemig 
Senior Member
 
bikemig's Avatar
 
Join Date: Apr 2012
Location: Middle Earth (aka IA)
Posts: 19,566

Bikes: A bunch of old bikes and a few new ones

Mentioned: 169 Post(s)
Tagged: 0 Thread(s)
Quoted: 5510 Post(s)
Liked 2,447 Times in 1,571 Posts
Originally Posted by obrentharris View Post
It's part of an estate that I'm helping the owner to disperse, so it will most likely go up for sale. I'd love to have a bike to put it on, but French bikes of this age in my size (60-62cm) are almost non-existent.
Brent
These would look sweet on a British bike from the 50s/early 60s as well; just sayin.
bikemig is offline  
Old 05-07-22, 10:42 PM
  #11  
obrentharris 
Senior Member
Thread Starter
 
obrentharris's Avatar
 
Join Date: May 2012
Location: Point Reyes Station, California
Posts: 3,936

Bikes: Indeed!

Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 1172 Post(s)
Liked 2,074 Times in 702 Posts
Originally Posted by bikemig View Post
These would look sweet on a British bike from the 50s/early 60s as well; just sayin.
Ooh, I like that idea! Finding a British bike to fit me is an easier task.
Brent
obrentharris is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.