Campagnolo BB-01CH, Chorus
Main Photo
Category:  Bottom Brackets
Name:  Campagnolo BB-01CH, Chorus
Brand:  Campagnolo
Primary Group:  Chorus
Model:  BB-01CH / BB-03CH
Years:  1992 - 1994
Country:  Italy
Added By: JFischer on 05/09/10
Updated By: lesterama on 03/21/23
Additional Photos - click for full size
Campagnolo BB-01CH, Chorus
Bearing Size/Count per side1/4" / 10x10Spindle MarkingsCampagnolo shield logo
Fixed Cup MarkingsCamppagnolo [threading] Made in ItalyAdjustable Cup MarkingsCamppagnolo [threading] Made in Italy
Spindle StyleSquare Taper (Campagnolo)Axle MaterialSteel
Available ThreadingsEnglish/ISO: 1.370 x 24;
Italian: 36mm x 24
Tools NeededSpanner, Locknut Wrench and Fixed Cup Wrench  
General Information
Chorus level BB.  Note that this part takes a 1/4" ball compared to the 7/32" of the Record BB of the same age.  Also the face of the fixed cup on this bottom bracket is slightly recessed instead of being flat across as on the Record bottom bracket.
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
Chorus RSCampagnolo1991 - 1994, Road RaceView 18 Components
Details:  Second generation C-Record era Chorus (aka Chorus RS), was released in 1991 with cranks from the first generation Croce D'Aune group and Record brake pads and holders for the Second generation Monoplaner brakes.
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