At the heart of the Cook Bros. Racing Threadless Headset is two, super-smooth, 4545, sealed bearings.

• CNC machined, 6061-T6 aluminum top cap, cups, compression ring and crown race
• 45×45 angular contact bearings which can also be used as integrated headset without cups
• Split aluminum crown race makes installation and removal from forks super easy
• Star nut included
• Laser-etched graphics

This headset will fit frames with 34mm inner diameter head tubes and forks with a 30mm crown race.

Size: 1-1/8″
Color:Black Anodized