Spécialités TA Pro 5 Vis (later version)
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Category:  Cranksets
Name:  Spécialités TA Pro 5 Vis (later version)
Brand:  Spécialités TA
Model:  Pro 5 Vis
Years:  Mid 1970's - ?
Country:  France
Added By: JFischer on 05/20/11
Updated By: peterbman on 11/04/15
Additional Photos - click for full size
Spécialités TA Pro 5 Vis (later version)Spécialités TA Pro 5 Vis (later version)Spécialités TA Pro 5 Vis (later version)Spécialités TA Pro 5 Vis (later version)
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Chainring CountDoubleBCD 
BB StyleSquare TaperPedal Threads14mm x 1.25mm (French);
9/16" x 20 (English)
BB Length Flutes Crank Arm
Lengths 170; 172.5; 175; 177.5Arm/Spider MaterialAluminum Alloy
Front MarkingsSpécialités TA Made in FranceBack Markings
Extractor Threading 23x1mm (TA Cranks)  
General Information
In the 1973 Specialties TA catalog, the Professionnel 5 Vis crankset including bottom bracket, is available in Criterium and Cyclotouriste chainring ensembles. Thus Pro(fessionnel) 5 Vis refers to the crankarms and bottom bracket, and not the chainrings. The Criterium chainrings have their small chainring(s) [double or triple] attached to a larger diameter bolt hole circle on the large chainring. The Cyclotouriste chainrings have their small chainring(s) [double or triple] attached to a small diameter bolt hole circle on the large chainring. The Professionnel chainrings [double or triple] have the largest diameter bolt hole circle, and are attached to an adapter, which attaches to the crankarm. Later version crankarms have the foil TA sticker within an inset. Later cranks may have standard Extractor threading; be cautious when working with TA cranks for this reason.
Quality:Rarity:
 
 
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Resources:Reference & ChartsCatalogsExternal ResourcesGear Calculator
Brand Information(click to expand)

First introduced alloy chainrings which were used on a number of other company's crankarms, TA soon move on to producing their own crank arms as well and then expanded into other products.

 
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