FSA Orbit ZS headset, 1-1/8" - black Bearing Type: Angular ContactCrown Race: 30.0Headset Detail Color: BlackHeadset Size: 1.5"Headset Size: 1-1/8"Headset Type: Internal, 44.0mm OD cup, 1-1/8" (Zero Stack)Material: AlloyStack: 14mmStack Height: 13.1mmSteer Tube Size: 1-1/8" ThreadlessWeight: 78gWeight: 82g