• The FSA Impact Headset is a internal 1-1/8" black headset
• Campagnolo compatible
• Integrated style bearings fit directly into headtube
• Alloy top cover
• Patented alignment tip for increased durability and performance
• TH brand 45/45 degree hybrid ACB bearings 
• 7075 alloy crown race
• Laser etched aluminum top cap
• Steerer Tube: 1-1/8" Threadless
• Headset Type: Integrated (IS), 42.0mm OD bearing 
• Crown Race: 30.0
• Stack Height: 0 mm