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. Uppers and lowers sold together as a set Enduro stainless steel sealed bearings and O-ring seals prevents water intrusion around steerer tube included on both the upper and lower system Ultralight stem cap with integrated spacer plus an aluminum bolt and a star nut, 6 mm stack height top cover only Lifetime warranty Item Specifications Bearing Type Cartridge Color Olive Crown Race 30 Defined Color Green Material Alloy S.H.I.S Lower EC34 S.H.I.S Upper EC34 S.H.I.S. Stem Clamp Diameter 28.6 Threadless Upper Stack Height 6 Wolf Tooth Premium Headset Headsets UPC: 810006808476
