Performance IS Upper Headset S.H.I.S. Stem Clamp Diameter:28.6 Threadless reducing forces and impacts to

reducing forces and impacts to the rider's hands and arms

Compatible with Garmin and Wahoo

Includes alloy lockring

thanks in part to its Hand Made Ultra-Light Carbon (HULC) construction

Performance IS Upper Headset S.H.I.S. Stem Clamp Diameter:28.6 Threadless reducing forces and impacts toWolf 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, durability and corrision resistance 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