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 45×45 bearings also work in integrated headset applications. Toss the cups, pop the bearings in your new frame, and roll!

Features:

• Integrated headset
• 6061-T6 aluminum top cap
• CNC machined
• Laser etched graphics
• Star Nut
• 45×45 angular contact bearings which can also be used as integrated headset without cups
• This Headset works for both integrated headset compatible frames and the good old tradition frame

Specifications:
Size:1-1/8″