Ambrosio Colnago (6-arm)
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Category:  Cranksets
Name:  Ambrosio Colnago (6-arm)
Brand:  Ambrosio
Model:  
Years:  Late 1970's - Early 1980's
Country:  Italy
Added By: Catnap on 05/03/11
Updated By: peterbman on 04/14/17
Additional Photos - click for full size
Ambrosio Colnago (6-arm)Ambrosio Colnago (6-arm)Ambrosio Colnago (6-arm)Ambrosio Colnago (6-arm)Ambrosio Colnago (6-arm)Ambrosio Colnago (6-arm)
 Verify Component Photos
Chainring CountDoubleBCD 
BB StyleSquare Taper (ISO)Pedal Threads9/16" x 20 (English)
BB Length Flutes Crank Arm; Spider
Lengths 170Arm/Spider MaterialAluminum Alloy
Front MarkingsColnago ErnestoBack Markings
Extractor Threading 22x1 Left Hand / Integrated  
General Information
A pair of Ambrosio 6 arm cranks put aside for a pair of Colnago Oros. These cranks appeared as an option for all Colnagos from the late 70s thru to the early 80s. They appeared to come in only one size 170 but with an option of two inner chainring sizes. 36 tooth and 42 tooth. Both types are shown here. Also, the original cranks were not supplied with crank dust caps or chainring bolts. Most owners used campy components as in the crank on the left, but the black bolts on the right crank look pretty cool as well. These cranks were highly polished and the chainrings were anodised. The non drive side crank arm is exactly the same as the regular 5 arm crank.
Quality:Rarity:
 
 
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Resources:Reference & ChartsGear Calculator
Brand Information(click to expand)
 Ambrosio is still in business today as 3ttt.

The Ambrosio trademark is also being used by a UK company that produces components and accessories using the 1980's logo. 
 
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