Campagnolo Q300, Centaur (freewheel)
Main Photo
Category:  Hubs
Name:  Campagnolo Q300, Centaur (freewheel)
Brand:  Campagnolo
Primary Group:  Centaur
Model:  Q300
Years:  1990
Country:  Italy
Added By: vxpro on 07/07/08
Updated By: peterbman on 01/21/16
Additional Photos - click for full size
Campagnolo Q300, Centaur (freewheel)Campagnolo Q300, Centaur (freewheel)Campagnolo Q300, Centaur (freewheel)Campagnolo Q300, Centaur (freewheel)
Gear Compatibility FreewheelFront Bearing Size/Count
Rear Bearing Size/CountRear Spacing128mm; 130mm
Spoke Drilling28; 32; 36Flange SizeLow Flange
Gear Threading/Pattern English/ISO: 1.375 x 24 TPI;
French: 1.366" x 25.4 tpi;
Italian: 1.378" x 24 tpi
Body MarkingsCampagnolo shield
Axle MaterialSteelShell MaterialAluminum
General Information
28h was only done for front hubs, rears were made in 32 or 36h only.  Made in 7 and 9mm fork end variations.  Threading in English, Italian or French.
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Additional Resources
Resources:Reference & ChartsCatalogsExternal Resources
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Campagnolo Q300-FG, Centaur (freewheel, High Flange)CampagnoloCentaur
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
CentaurCampagnolo1990 - 1993, Mountain BikeView 28 Components
Details:  Centaur was introduced late 89 (1990 model year from what I can gather) as a minimalist version of their Euclid MTB group set.  The first version was essentially the same as Euclid with some subbed out parts such as the brake levers, a freewheel hub and a few other parts.  In late 1990 the group was revised to the form it would have until it was discontinued in the mid 90's when Campagnolo exited the MTB market.
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