Wolf Tooth Premium Headset - ZS44/ZS56 Olive CheckoutTitle=Zipp Cognition Rr XDR End Cap Assy 7 Steerer Tube Length (mm)

7 Steerer Tube Length (mm) 166 Top Cap 24x1

} 23mm deep

}Cane Creek 110 ZS44 / 28

4130 chromoly with post-weld heat-treatment

Wolf Tooth Premium Headset - ZS44/ZS56 Olive CheckoutTitle=Zipp Cognition Rr XDR End Cap Assy 7 Steerer Tube Length (mm)Wolf Tooth Premium Headset ZS44 ZS56 Olive. 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