Williams AB 77
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Category:  Cranksets
Name:  Williams AB 77
Brand:  Williams
Model:  AB 77
Years:  1962 - Mid 1970's
Country:  England
Added By: Catnap on 12/13/13
Updated By: Paul Mayo on 06/03/15
Additional Photos - click for full size
Williams AB 77Williams AB 77Williams AB 77Williams AB 77Williams AB 77Williams AB 77Williams AB 77Williams AB 77
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Chainring CountDoubleBCD 50.4mm
BB StyleSplinedPedal Threads9/16" x 20 (English)
BB Length Flutes Crank Arm
Lengths 171Arm/Spider MaterialAluminum Alloy
Front MarkingsE.B.W. and Williams logoBack Markings
Extractor Threading 22x1mm (Standard)  
General Information
Similar design as Stronglight 49D and TA Pro 5 cranksets.  Uses a proprietary splined bottom bracket made by TDC.  High quality cranks, all alloy.  Benefit over Gnutti splined is that no need for special tool to remove cranks.   Released in 6 ¾" / 171mm length only. The only British cotterless crank made in any quantity
Quality:Rarity:
 
 
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Additional Resources
Marketplace:Looking to buy one of these?Sell one like this
Resources:Reference & ChartsGear Calculator
Brand Information(click to expand)
 Williams produced cranksets from the 1920's through the early 1980's or later.  Most noted, perhaps unfairly, by their lower end cranksets which changed little from the 1920's into the early 60's.  ClassicLightweights has more information on this brand.
 
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