FSA Orbit 1.5E ZS 1 1/8-1.5 Inch Threadless Headset - Black

The FSA Orbit 1.5E ZS 1 1/8-1.5 Inch Threadless Headset is for tapered 44/56mm ID head tube and comes with an alloy top cover, forged alloy and CNC machined alloy cups.1.1/8", 36°×45° ACBFor tapered 44/56mm ID Head Tube1.1/8" to 1.5" steererAlloy top coverUpper: Forged alloy cup with ACB (blue seal)Lower: 1.5" CNC machined alloy cup with ACB (blue seal)Stack height: 16.9 + 2.9 = 19.8mmWeight: 129.6gSpares:Upper Bearing: TH873 (160-1648)Lower Bearing: TH073 (160-6761)Crown Race: 1.1/8-1.5” (H6088, 160-5551)