FSA Orbit ZS Shallow Cup

Upper bearings: 1-1/8'', 36°/45° ACB (blue seal) Lower bearings: 1-1/8'', 36°/45° ACB (blue seal) Headtube OD: 50mm Forged alloy shallow cups Stack height: 24.3mm Attributes Bearing Grade ACB Sealed Crown Race Diameter 30mm Lower Cup 44mm Headset Type ZeroStack Upper Cup 44mm Headset Weight 80g Misc 36°/45° ACB (blue seal) Material Aluminum Primary Color Silver S.H.I.S. ZS44/28.6 | ZS44/30 Steerer Tube 1-1/8'' Stack Height 24.3 Headset Position Complete SHIS Upper ZS44/28.6 SHIS Lower ZS44/30