Stronglight RAZ Steel Headset - 1 1/8 inch - ZS44/28.6 | ZS44/30

Fully integrated (also known as press fit or zero stack) 1 1/8" headset with sealed cartridge bearings and cups made of steel. Features: inner diameter: 44mm (+/- 0.1mm) outer diameter: 50mm stack heigth: 10,4mm bearings : cartridge bearings, semi integrated upper diameter: 1 1/8 inch lower diameter: 1 1/8 inch SHIS code : ZS44/28.6 | ZS44/30 Construction type (Ahead/Thread): Press Fit with 44mm inner diameter (semi integrated) Material: body: aluminum top cap: steel