Stronglight A9 ST Threaded Steel Headset 1"

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