Mavic 840
Main Photo
Category:  Rear Derailleurs
Name:  Mavic 840
Brand:  Mavic
Model:  840
Years:  1992 - ?
Country:  France
Weight:  234 grams (Actual)
Added By: cmdr on 08/12/07
Updated By: MGTS on 03/16/15
Additional Photos - click for full size
Mavic 840Mavic 840Mavic 840Mavic 840
Outer Plate MarkingsMavicInner Plate MarkingsNone
MaterialAluminum Alloy; TitaniumDesign CategorySlant parallelogram
Attachment Bolt Size6mm Allen KeyCable Attachment Bolt Size4mm Allen Key
Shifting SystemsMavic
Dura-Ace SIS
Dura-Ace STI
Cable AdjusterYes
Cage LengthShortMax Cog Size26
Max Chain Wrap  
General Information
Also available in medium cage (841 road) or long cage (845 mountain). Completely rebuildable, all major part are held on by c-clamp. Uses nylon pulleys and needle bearings.  Shared the same geometry as the Shimano Dura-Ace 7400 series derailleurs.
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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
Mavic 841Mavic
Brand Information(click to expand)
 Mavic is best known for its lightweight aluminum rims and complete wheels, which they continue to produce today.  They also produced a full range of drive train components in the past.  Mavic made a failed attempt to popularize an electronic shifting system in the early 90's.
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