At the heart of the Cook Bros. Racing threadless headset are two super-smooth, 4545, sealed bearings. A split aluminum crown race makes installation and removal from forks super easy.

But there is more! Despite this being a threadless headset with cups, the 4545 bearings also work in integrated headset applications. Toss the cups, pop the bearings in your new frame, and roll!

Key Standouts

• A split aluminum crown race makes installation and removal from forks super easy, allowing you to spend more time riding and less time fussing.
• This Headset works for both integrated headset-compatible frames and the good old traditional frame. Dare we say this little number goes both ways.

Features

• CNC machined 6061-T6 aluminum top cap, cups, compression ring, and crown race.
• 4545 angular contact bearings which can also be used as an integrated headset without cups.
• Fits 1 1/8 headtube
• Star nut.
• Available in red, blue, gold, black, and silver anodized finishes with laser-etched graphics.