Wolf Tooth Performance Headset - ZS56/40 Lower Raw Silver MFPN=371-0153E Includes special tubeless air valves

Includes special tubeless air valves that allow air to move through the valve without becoming obstructed by the insert

High rigidity allows for quick response and higher efficiency

Specifically formulated to produce a cooling and soothing effect for cyclists who prefer a traditional European-style chamois creme

Internal liner improves tubeless performance and durability

Wolf Tooth Performance Headset - ZS56/40 Lower Raw Silver MFPN=371-0153E Includes special tubeless air valvesWolf Tooth Performance Headset ZS56 40 Lower Raw Silver. Wolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings balancing quality and price. Black Oxide Bearings are made from chromium steel for high load capacity and durability Custom molded dual lip seal on the crown race protects lower bearing in the toughest conditions TECH SPECS S. H. I. S Lower ZS56Color Raw SilverBearing