Campagnolo 1012/4, Gran Sport (first version)
Main Photo
Category:  Rear Derailleurs
Name:  Campagnolo 1012/4, Gran Sport (first version)
Brand:  Campagnolo
Primary Group:  Gran Sport
Model:  1012/4
Years:  1951
Country:  Italy
Weight:  300 grams
Added By: JFischer on 07/19/07
Updated By: JFischer on 07/20/11
Additional Photos - click for full size
Campagnolo 1012/4, Gran Sport (first version)Campagnolo 1012/4, Gran Sport (first version)
Outer Plate MarkingsCampagnolo Gran SportInner Plate Markings
MaterialBronzeDesign CategoryInline parallelogram
Attachment Bolt SizeCable Attachment Bolt Size
Shifting SystemsFrictionCable AdjusterYes
Cage LengthShortMax Cog Size
Max Chain Wrap  
General Information
Very early version of the Campagnolo Gran Sport rear derailleur. 
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 4)BrandGroup
Campagnolo 1012/1, Gran SportCampagnoloGran Sport
Campagnolo 1012/1, Gran SportCampagnoloGran Sport
Campagnolo 1012/4, Gran SportCampagnoloGran Sport
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Gran Sport (1951-196X)Campagnolo1951 - , Road RaceView 26 Components
Details:  Hugo Koblet won the 1951 Tour de France in July using Gran Sport derailleurs.
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