Wolf Tooth Premium ZS Headsets - Zero Stack Upper

Description

This is only the upper bearing cup, You also need the Lower cup for a complete headset Wolf Tooth Precision Headsets are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These ZS headsets are for frames with internal bearing cups that are pressed into the frame. Compatibility: Any frame that uses ZS (Zero Stack) headsets with 44mm upper and 56mm lower head tube inner diameter Click here to see our complete guide on how to determine which headset you need. We recommend using the Wolf Tooth crown race installation adapter to install the crown race and avoid damaging the crown race seals Complementing Products: Precision headsets spacer Alloy water bottle cage bolts Wolf Tooth crown race installation adapter Tech Specs: Uppers and Lowers sold separately Enduro stainless steel sealed bearings included on both the upper and lower Upper assembly features: Our signature 5 mm integrated spacer plus stem cap with an aluminum bolt and a star nut 5, 15 and 25 mm stack height top caps O-ring seal prevents water intrusion around the steerer tube Custom molded upper lip seal provides additional protection for upper bearing Lower assembly features: Custom molded dual lip seal on the crown race to protect lower bearing in the toughest conditions The Wolf Tooth crown race installation adapter installs the crown race without damaging the crown race seals All components precision machined in-house at Wolf Tooth from aircraft grade aluminum to ensure the highest level of quality Service and additional parts available Available colors: black, silver, red, blue, green, orange, purple, gold