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 Item Specifications Bearing Type Cartridge Bearing Type Stainless Steel Color Black S.H.I.S Upper IS41 S.H.I.S. Stem Clamp Diameter 28.6 Upper Stack Height 7 Wolf Tooth Premium IS Upper Headset Headset Upper UPC: 812719028059
