Odyssey Pro Integrated Conical Headset material: 6061-T6 Aluminium | CNC machined dust cover type: integrated | Campy spec 45/45 degree fork size: 1 1/8 inch threadless bearings: high-quality sealed bearings color: black additional information: 12mm dust cap with 3mm, and 2mm spacers 45º tapered bearings 41.8mm outer diameter (fits 42mm bmx head tubes) monogram laser etched logo