Cycle Group PX-HS1300IN1-RD Promax IG-45 Alloy Sealed Integrated 45 x 45 Headset, 1-Inch, Red Available in anodized red, blue, gold and black, in 1" and 1 1/8" sizes Features an aluminum cap, bearing cover and crown race with super-smooth rolling, precision 45x45 bearings Used by Marc Willers and World Champions Caroline Buchanan