Campagnolo 3331, (Nuovo) Gran Sport (Thin Cup)
Main Photo
Category:  Bottom Brackets
Name:  Campagnolo 3331, (Nuovo) Gran Sport (Thin Cup)
Brand:  Campagnolo
Primary Group:  (Nuovo) Gran Sport
Model:  3331
Years:  Mid 1970's - Mid 1980's
Country:  Italy
Weight:  304 grams (Actual),
italian 70-SS-120
Added By: JFischer on 08/31/09
Updated By: Tombo on 05/05/16
Additional Photos - click for full size
Campagnolo 3331, (Nuovo) Gran Sport (Thin CupCampagnolo 3331, (Nuovo) Gran Sport (Thin CupCampagnolo 3331, (Nuovo) Gran Sport (Thin CupCampagnolo 3331, (Nuovo) Gran Sport (Thin CupCampagnolo 3331, (Nuovo) Gran Sport (Thin CupCampagnolo 3331, (Nuovo) Gran Sport (Thin CupCampagnolo 3331, (Nuovo) Gran Sport (Thin Cup
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Bearing Size/Count per side1/4" / 11x11Spindle Markings68-SS-120 / 70-SS-120
Fixed Cup Markings[threading] Made in Italy CampagnoloAdjustable Cup Markings[threading] Made in Italy Campagnolo
Spindle StyleSquare Taper (Campagnolo)Axle MaterialSteel
Available ThreadingsEnglish/ISO: 1.370 x 24;
French: 35mm x 1mm;
Italian: 36mm x 24
Length(s)112mm (68-SS-120) / 113mm (70-SS-120)
Tools NeededSpanner, Locknut Wrench and Fixed Cup Wrench  
General Information
The G.S. axles are 3 mm (68-SS) resp. 2 mm (70-SS) longer on the right (chainring) side. Be aware when assembling...;-)
[Campa 1985 catalogue #18 p.46]
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
(Nuovo) Gran Sport (1974-198X)Campagnolo1974 - , Sport & RecreationView 20 Components
Details:  The reintroduction of the "Gran Sport" name in the mid 70's found the group situated below the "Record" groups in the Campagnolo line up. 
This group was eventually phased out in the early to mid 80's with the introduction of the Victory and Triomphe groups. According to the comments in the '85 Campa catalogue e.g. the G.S. crankset (#0304), the pedals (#3700) and the BB (#3331) - or at least the G.S. axle (#3332) - were "no more available and replaced by the Victory range..."
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