Stronglight A9 (Stronglight France on locknut)
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Category:  Headsets
Name:  Stronglight A9 (Stronglight France on locknut)
Brand:  Stronglight
Model:  A9
Years:  1984 - ?
Country:  France
Weight:  79.5 grams (Spec)
Added By: pete bugsy brown on 12/19/09
Updated By: peterbman on 04/04/14
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Stronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknutStronglight A9 (Stronglight France on locknut
Body MaterialAluminumUpper Bearing SizeNeedle Bearings
Lower Bearing SizeNeedle BearingsCrown Race SizeISO or JIS
Upper Cup MarkingsLower Cup Markings
Available Threading English/ISO/Italian (25.4mm x 24TPI);
French (25mm x 1mm)
Stack Height 
General Information
Recognized as being among the first to make needle bearing headsets, this is one of the finest and lightest versions we have seen. It starts very similarly to other needle bearing units. There are six aluminum pieces. Five of them are cast and cleaned up by interior machine polishing. These are the cone race elements, the bearing cup elements and the head lock nut. The head key washer is stamped from sheet aluminum. There are four beveled steel races, one for each of the cup and crown elements. The needle bearing retainer has twenty bearings in it. Although this headset has no rubber seals or skirt gaskets, with the tolerances that the parts are machined to, it probably doesn't need it. With the parts just resting on one another, and with no grease, the pieces move very freely. Available in English thread in Blue, Silver or Black. The A9 does not appear in the 1982 Stronglight catalog, and does appear in the 1984, 1986, and 1987 Stronglight catalogs. These catalogs show the A9 locknut as marked 'Stronglight' only, and not as 'Stronglight France' or 'Stronglight Spidel.' 
Quality:Rarity:
 
 
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