Surprisingly weird bottom bracket
01-03-17 | 09:13 PM
#1
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From: Elwood Indiana
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Surprisingly weird bottom bracket
The bottom bracket on a Colnago I just picked up had lock rings on both sides. Both cups were adjuster cups with campagnolo and Colnago stamped on them. On top of that it had sealed bearing cartridges with a removable spindle. Has anybody came across one of these? First time for me.
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01-03-17 | 09:46 PM
#2
If I own it, I ride it
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From: Cardinal Country
Bikes: Lejeune(14), Raleigh, Raysport, Jan De Reus, Gazelle, Masi, B. Carré(4), Springfield, Greg Lemond, Andre Bertin, Schwinn Paramount
The bottom bracket on a Colnago I just picked up had lock rings on both sides. Both cups were adjuster cups with campagnolo and Colnago stamped on them. On top of that it had sealed bearing cartridges with a removable spindle. Has anybody came across one of these? First time for me.
01-03-17 | 09:46 PM
#3
Pictures, or it didn't happen.
01-04-17 | 08:55 AM
#5
aka: Dr. Cannondale
Joined: Jul 2009
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Cannondale used to put something similar on their AA thru CC ST touring frames. Sugino? Suntour? Was a sealed cartridge bearing body with threaded adjuster ends and lockrings on both sides. Made it easy to adjust the chainline. Years ago I even rebuilt one with aftermarket sealed bearings...
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01-04-17 | 11:02 AM
#7
feros ferio
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From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
I have never need to try this myself, but I have often suggested to owners of French or Italian bikes that they could microadjust their chainline by using adjustable cups on both sides of the BB.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
01-04-17 | 11:08 AM
#8
Bikes are okay, I guess.
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From: Richmond, Virginia
Bikes: Waterford Paramount Touring, Raleigh Sports 3-speeds in M23 & L23, Schwinn Cimarron oddball build, Marin Palisades Trail dropbar conversion, Nishiki Cresta GT, Jeunet mixte
EDCO might have made that BB for Colnago.
01-04-17 | 11:31 AM
#9
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Excellent piece and simply allows one to fine adjust the chain line. Others offered them as well, such as Specialized, OMAS and one I installed in my long gone stolen Colnago Mexico was a Sampson Stratics w/ fluted ti spindle.
How about some pics of this project?
How about some pics of this project?
01-04-17 | 11:42 AM
#10
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From: Elwood Indiana
Bikes: they change so much I'm tired of updating this
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01-04-17 | 12:35 PM
#14
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From: Los Angeles
Bikes: 78 Masi Criterium, 68 PX10, 2016 Mercian King of Mercia, Rivendell Clem Smith Jr
There was an Ofmega/Avocet sealed bottom bracket that looked just like that. It would be my first guess. Ofmegas was known to rebrand their components for others. Maybe OMAS or EDCO or something else though. The dual adjusting cup was a common configuration for sealed BB around 1980. Before too long everyone just copied the Phil Wood cartridge concept.
On second glance I'm going to go with OMAS. The cup covers look more correct. Avocet cups left the sealed cartridges partly exposed, and it's possible Ofmega wasn't the OEM for those BB at all.
On second glance I'm going to go with OMAS. The cup covers look more correct. Avocet cups left the sealed cartridges partly exposed, and it's possible Ofmega wasn't the OEM for those BB at all.
Last edited by Salamandrine; 01-04-17 at 12:49 PM.
01-04-17 | 01:42 PM
#18
Old fart
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From: Appleton WI
Bikes: Several, mostly not name brands.
A Colnago is likely Italian thread, so it's possible to use an adjustable cup on both sides of the bottom bracket. This also allows some degree of chainline adjustment.
01-04-17 | 02:13 PM
#20
Colnago does not approve of chrome due to the chemicals… But the fork gets is for the crown…?!
And later the whole fork gets chromed, which of course makes it much easier to inventory and track as only size range dependent, no color and size to keep matched.
Gotta love it.
Straight bladed forks are easier too later… I admire how he made lower cost of building a feature.
They do steer with entertainment.
And later the whole fork gets chromed, which of course makes it much easier to inventory and track as only size range dependent, no color and size to keep matched.
Gotta love it.
Straight bladed forks are easier too later… I admire how he made lower cost of building a feature.
They do steer with entertainment.
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