Campagnolo Croce d' Aune (Short Cage)
Main Photo
Category:  Rear Derailleurs
Name:  Campagnolo Croce d' Aune (Short Cage)
Brand:  Campagnolo
Primary Group:  Croce d' Aune
Model:  B010-SM
Years:  Late 1980's - ?
Country:  Italy
Added By: JFischer on 11/22/07
Updated By: onespeedbiker on 12/05/12
Additional Photos - click for full size
Campagnolo Croce d' Aune (Short Cage)Campagnolo Croce d' Aune (Short Cage)Campagnolo Croce d' Aune (Short Cage)Campagnolo Croce d' Aune (Short Cage)Campagnolo Croce d' Aune (Short Cage)Campagnolo Croce d' Aune (Short Cage)
Outer Plate MarkingsCampagnolo scriptInner Plate MarkingsNone
MaterialAluminum AlloyDesign CategoryInline parallelogram
Attachment Bolt Size5mm Allen KeyCable Attachment Bolt Size5mm Allen Key
Shifting SystemsCampagnolo Syncro
Campagnolo Syncro II
Cable AdjusterYes
Cage LengthShortMax Cog Size28
Max Chain Wrap30t  
General Information
The innovative design of the CROCE D'AUNE derailleur is an improvement on the above mentioned systems and achieves its efficiency through Campagnolo's patented" "TWIN-AXLE System". The "TWIN-AXLE System" is an articulation of the geometry of the derailleur which combines two movements to move the jockey cage across the freewheel while keeping it equidistant from all the cogs regardless of how big or how small they are in diameter.

The "TWIN-AXLE System" of this new derailleur works in this way: when the gear cable is pulled the derailleur rotates on its pivot bolt (fig. A) causing the jockey cage to alter itself to suit the increasing diameters of the freewheel cogs. At the same time, a rigid, stainless steel arm on the diagonal of the parallelogram moves the cage plate along the freewheel (fig. B) guiding the chain from one cog to another. The movement of the parallelogram is controlled by a return spring. This spring is not, however, preloaded like on other derailleurs which can cause needless friction. Thanks to the elimination of friction at this point the derailleur's shifting action is much lighter and smoother than other gear changers.

The "TWIN-AXLE System" of the CROCE D'AUNE derailleur is a new break-through in derailleur technology and is destined to set new standards for competition derailleurs. In races like the Giro d'ltalia and Tour de France where steep mountain roads torture both man and machine it is extremely important for the derailleur to perform flawlessly because one missed shift or slipped chain can be the difference between winning and loosing. Campagnolo 1988 catalog..
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Campagnolo Croce d' Aune (Long Cage)CampagnoloCroce d' Aune
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Croce d' AuneCampagnolo1987 - 1991, Road RaceView 14 Components
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