FSA Impact Pro IS headset
The Impact Pro headset features integrated bearings that fit directly into the head tube of your modern Italian frame (or any other frame using Camapagnolo-style bearings).
• 1-1/8" integrated
• 45°/ 45° IS42 angular contact bearings (Campy compatible)
• alloy top cap/steel starnut assembly (not for use on forks with a carbon steerer)
• 7075 AL crown race
• stack height: 9.4mm
• weight: 64g