Sugino Pro Dynamic
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Category:  Cranksets
Name:  Sugino Pro Dynamic
Brand:  Sugino
Model:  Pro-Dynamic S
Years:  N/A
Country:  Japan
Added By: cudak888 on 03/23/09
Updated By: peterbman on 01/19/17
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Sugino Pro DynamicSugino Pro DynamicSugino Pro DynamicSugino Pro DynamicSugino Pro DynamicSugino Pro DynamicSugino Pro DynamicSugino Pro Dynamic
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Chainring CountDoubleBCD 50.4mm
BB StyleSquare Taper (JIS)Pedal Threads9/16" x 20 (English)
BB Length Flutes Crank Arm
Lengths 165; 170Arm/Spider MaterialAluminum Alloy
Front MarkingsPro Dynamic SBack MarkingsNone
Extractor Threading 22x1mm (Standard)  
General Information
The Dynamic Professional was Sugino's copy of the classic French TA Pro 5 Vis / Stronglight 49D crankset popular with cyclotourists and randonneurs. Sharing the same distinctive 50.4 bolt circle diameter as its French ancestors, it can often be found mated to both French made rings as well as Sugino rings.  The Sugino chainrings, however, incorporate a different BCD for the inner chainrings.  Early on, the design of the Sugino chainrings was similar to their lower-end DJX-1 model, but were later changed to a design similar in appearance to the famous Rene Herse cranks.  At least three variants of the Sugino Dynamic Professional chainring are known to exist.

The Dynamic Professional was originally issued as a cottered crankset, and was upgraded to a cotterless design in the early 1970's.  It was replaced by the Sugino PX in the early 1980's.  Below is a page from the 1973 Sugino catalog, showing the Dynamic Professional crankset.  A later 1978 catalog refers to the same crankset as the "Pro-D".




Cited from: http://cyclespeugeot.web.fc2.com/sugino73.htm
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Brand Information(click to expand)
Sugino is a Japanese manufacturer of road and track bicycle components, founded in Nara, Japan, in 1910. It made chainsets and chainrings. It fell on hard times in the early 90s and became smaller. The company still makes bicycle components.
 
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Rudge Whitworth
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