FSA Orbit Z Deep Cup

Upper bearings: 1-1/8'', 36°/45° ACB (blue) Lower bearings: 1-1/8'', 36°/45° ACB (blue) Deeper forged alloy cups Headtube OD: 50mm Stack height: 20.1mm Headtube inner diameter: 44mm Attributes Bearing Grade ACB Sealed Crown Race Diameter 30mm Lower Cup 44mm Headset Type ZeroStack Upper Cup 44mm Headset Weight 79g Misc 36°/45° ACB (blue seal) Material Aluminum Primary Color Black S.H.I.S. ZS44/28.6 | ZS44/30 Steerer Tube 1-1/8'' Stack Height 20.1 Headset Position Complete SHIS Upper ZS44/28.6 SHIS Lower ZS44/30