Campagnolo Record Hiddenset-TTC integrated headset, 1-1/8" Bearing Type: 1/8" BallCrown Race: 30.0Fits Model: Tall Top Cap(TTC)Headset Detail Color: BlackHeadset Detail Color: CarbonHeadset Size: 1-1/8"Headset Type: Integrated, 42.0mm OD bearing 45/45 (Hiddenset)Headset Type: Integrated, 42.0mm OD, 45 deg bearing (Hiddenset)Material: AlStack: 15.9mmStack Height: 12mmSteer Tube Size: 1-1/8" IS-CAWeight: 75gWeight: 80g