Stronglight 49D (Marque Deposee)
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Category:  Cranksets
Name:  Stronglight 49D (Marque Deposee)
Brand:  Stronglight
Model:  49D
Years:  Early 1960's - ?
Country:  France
Weight:  579 grams (avg)
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Added By: JFischer on 08/13/07
Updated By: Tombo on 04/15/16
Additional Photos - click for full size
Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)Stronglight 49D (Marque Deposee)
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Chainring CountDoubleBCD 50.4mm
BB StyleSquare Taper (ISO)Pedal Threads14mm x 1.25mm (French);
9/16" x 20 (English)
BB Length Flutes Crank Arm
Lengths 165; 170; 175Arm/Spider MaterialAluminum Alloy
Front MarkingsSTRONGLIGHT Marque DeposéeBack Markings49D Made in France (around spindle)
Extractor Threading 23.35x1mm (Stronglight)  
General Information
Earlier Stronglight 49D crankarms had "Stronglight Depose" in two lines on the crankarms, and later crankarms had "Stronglight Marque Deposee" in three lines on the crankarms. Older crankarms have narrower fluting than later crankarms. Later crankarms are chunkier, more boxy in profile. Later crankarms have both the size and pedal threading marked on the arm as well as "Made in France" and "Modele Deposee" and a date code on the crankarm head where it fits onto the axle. Older crankarms have the crankarm length and "Made in France" marked on the crankarm head, and nothing on the crankarm, sometimes only the crankarm length on the head. There are also differences in chainring bolts and chainring markings.  

This is a 50.4 BCD crank set, meaning that all of the "spider" is part of the large chain ring.  Because of this, many different chain ring styles can and were used on the 49D arms.  Smaller ring is an 86mm BCD. Also can be configured as a triple ring setup.  Crank arms with and without the word 'Marque' have been seen, even on the same bike!
Quality:Rarity:
 
 
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Additional Resources
Resources:Reference & ChartsCatalogsGear Calculator
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Stronglight 49D (Depose)Stronglight
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WeightSourceNotesAdded By
583 GramsActual50/40 Chainrings stedeu
575 GramsActual52/38 chainrings Tombo
Benotto
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