Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and feature high-end bearings made by Enduro. They are engineered to use the largest possible ball size and are filled with high-pressure waterproof lubricant. A pair of dual-lip seals ride in micro-grooves to keep out water and debris.

• Stainless steel bearings provide unparalleled corrosion resistance
• Highly recommended if your headset will be exposed to wet conditions or sweat
• Ultralight stem cap with integrated spacer, plus an aluminum bolt and a star nut
• O-ring seal prevents water intrusion around the steerer tube
• Custom-molded upper lip seal provides additional protection for upper bearing
• Lifetime warranty

Wolf Tooth Premium ZS Upper Headset Headset Upper UPC: 810159401067