Classic Stronglight A9 1" (English) threaded external cup headset. Gloss black finish with modern long life sealed cartridge bearings. Made in France from high quality steel with "STRONGLIGHT" printed on the upper cup for that perfect retro look. A timeless choice for classic steel frames and vintage restoration projects.
Inner diameter: 30.2mm
External diameter: 35mm
Stack height: 39.4mm
Weight: 140 grams
MPN: 252709