Fork Crowns: Let's see yours!
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03-23-22, 12:37 AM
#53
Senior Member
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Not mine, but seen in the Singer shop recently:
A classic and graceful Jo Routens
A classic and graceful Jo Routens
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03-23-22, 07:00 AM
#54
aka: Dr. Cannondale
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Dual plane Pelizzoli
__________________
Hard at work in the Secret Underground Laboratory...
Hard at work in the Secret Underground Laboratory...
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03-23-22, 10:06 AM
#56
Senior Member
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Bruce Gordon.
Brent
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03-23-22, 01:28 PM
#57
framebuilder
This is the fork crown we use on the transportation bicycles we build in Ukraine. All parts of it except the blades were made at a laser cutting factory south of Kyiv. Since they have the capacity to cut things out we thought it might be a good idea to braze on a cross on top of the crown. One out of 100 thieves (or maybe 1000) just might decide not to steal it when they see it. Anyway I think the cross looks cool.
A twin plate crown is complicated to braze accurately so the plates aren't twisted and 90º to the steerer and exactly the right distance apart. We had to design and make a special tool to hold everything in place. Nolan - one of my students - helped me design it. He turned to making frames as therapy for his cancer. Sadly he didn't make it even though he was only in his 30's. He was one of those that had made plans to spend a few months in Ukraine brazing transportation frames to sharpen his skills.
The picture of the fork jig is just outside of the frame shop in Ukraine. It is just past the tops of those trees on the horizon I saw that biggest cargo plane land one time. I'm sure that peaceful scene is no more since that is exactly where the head of the Russian convoy is now stalled.
The twin plate fork crown on the transportation frames we make in Ukraine
The tool holding the pieces together for brazing
The tool is fairly complicated
Brazing the twin plate fork outside the shop when the weather is nice in Ukraine
A twin plate crown is complicated to braze accurately so the plates aren't twisted and 90º to the steerer and exactly the right distance apart. We had to design and make a special tool to hold everything in place. Nolan - one of my students - helped me design it. He turned to making frames as therapy for his cancer. Sadly he didn't make it even though he was only in his 30's. He was one of those that had made plans to spend a few months in Ukraine brazing transportation frames to sharpen his skills.
The picture of the fork jig is just outside of the frame shop in Ukraine. It is just past the tops of those trees on the horizon I saw that biggest cargo plane land one time. I'm sure that peaceful scene is no more since that is exactly where the head of the Russian convoy is now stalled.
The twin plate fork crown on the transportation frames we make in Ukraine
The tool holding the pieces together for brazing
The tool is fairly complicated
Brazing the twin plate fork outside the shop when the weather is nice in Ukraine
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03-23-22, 07:53 PM
#60
framebuilder
Here is a beautiful fork crown Tom Kellogg prepped and Ronald Della Santa brazed. It is part of a project 10 American builders - that started in the 70's - did as a collaborative effort. The lug you see was done by Brian Baylis. He not only shaped it but also added brass to the transitions to smooth out the radius between the joints. I added the braze-ons and did the painting. 3 of us have already passes away. Bruce Gordon did the dropout treatments.
A Tom Kellogg prepared fork crown combined with a Brian Baylis modified down tube lug
A Tom Kellogg prepared fork crown combined with a Brian Baylis modified down tube lug
03-23-22, 07:56 PM
#61
framebuilder
03-23-22, 09:42 PM
#62
Long time lurker
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Another noni
Here's another Marinoni. Maple leaf version. Maybe someone will post the fleur de lis version.
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03-23-22, 11:09 PM
#63
Newbie
Join Date: Jul 2021
Location: Snohomish WA
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Bikes: 1984 Serotta Nova Special, 1976 Zeus, 1995 Park Pre Pro825, 1992 Cannondale M800, 1993 Bridgestone MB-1
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1984 Serotta fork crown
03-23-22, 11:33 PM
#64
Disciple of St. Tullio
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Hampsten
Frejus
Kondor
Losa
Pegoretti
Frejus
Kondor
Losa
Pegoretti
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03-24-22, 09:59 AM
#65
Senior Member
Join Date: Jun 2005
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Bikes: 07 Vanilla, 98 IRD road frame built up with 25th Ann DA, Surly cross check with 105 comp, 78 Raleigh Comp GS, 85 Centurionelli
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My 2007 Vanilla, the last shot is after I went with a bigger tire which required a larger fender and a "daruma" bolt to hold it instead of the elegant "floating" mount Sacha used initially.
Last edited by poprad; 03-24-22 at 10:18 AM.
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03-24-22, 10:09 AM
#66
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'74 Colnago with a fine coating of Tuscan dust in 2012:
And slightly dirtier the following year:
Frankly I think it looks better with the dirt:
And slightly dirtier the following year:
Frankly I think it looks better with the dirt:
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03-24-22, 10:17 AM
#67
Senior Member
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"Centurionelli" build:
I eventually settled on the Monoplanars...just too damn cool not to:
I eventually settled on the Monoplanars...just too damn cool not to:
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03-24-22, 10:21 AM
#68
Senior Member
Join Date: Jun 2005
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And lastly a workman-like Raleigh Comp GS. Sturdy and simple:
03-24-22, 10:24 AM
#69
Senior Member
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Bikes: 07 Vanilla, 98 IRD road frame built up with 25th Ann DA, Surly cross check with 105 comp, 78 Raleigh Comp GS, 85 Centurionelli
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Here is a beautiful fork crown Tom Kellogg prepped and Ronald Della Santa brazed. It is part of a project 10 American builders - that started in the 70's - did as a collaborative effort. The lug you see was done by Brian Baylis. He not only shaped it but also added brass to the transitions to smooth out the radius between the joints. I added the braze-ons and did the painting. 3 of us have already passes away. Bruce Gordon did the dropout treatments.
A Tom Kellogg prepared fork crown combined with a Brian Baylis modified down tube lug
A Tom Kellogg prepared fork crown combined with a Brian Baylis modified down tube lug
03-24-22, 10:45 AM
#70
Old fart
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That could be a MER by Takahashi. Davidson used a couple thousand of those on their Impulse model ('80-'90s). Later those were knocked off in Taiwan and the knockoffs are pretty faithful, can be hard to tell from an original made in Japan. Ritchey had his own knockoff but with the Ritchey logo cast-in.
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03-24-22, 02:03 PM
#72
Junior Member
Cinelli SCA on '84 Chas Roberts 531c.
Lugged unicrown ~'90 Verago ATB
Lugged unicrown ~'90 Verago ATB
Last edited by esasjl; 03-24-22 at 02:13 PM. Reason: Adding picture
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03-24-22, 02:13 PM
#73
Senior Member
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Bikes: Merz x 5 + Specialized Merz Allez x 2, Strawberry/Newlands/DiNucci/Ti x3, Gordon, Fuso/Moulton x2, Bornstein, Paisley,1958-74 Paramounts x3, 3rensho, 74 Moto TC, 73-78 Raleigh Pro's x5, Marinoni x2, 1960 Cinelli SC, 1980 Bianchi SC, PX-10 X 2
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03-25-22, 03:01 AM
#74
Junior Member
03-25-22, 07:40 PM
#75
Full Member
Join Date: Mar 2015
Location: The Lou
Posts: 340
Bikes: 82 Trek 710, 90 Trek 750, 86 Vitus, Nishiki Cervino, 1989 Bianchi CdI, 2 Nashbars, an Italian Steel MTB, Sears Spaceliner, and a 74 Schwinn Speedster. I also manage a fleet of Volcanic Patrol bikes, 83 of them.
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I think this is an 83, Nishiki Cervino. Its dirty, needs cleaning.
89 Bianchi CiD.
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