Wolf Tooth Performance Headset - ZS44/28.6 Upper 6mm Stack Raw Silver MFPN=11600812.01 }TRP HY/RD Mechanical/Hydraulic Post Mount

}TRP HY/RD Mechanical/Hydraulic Post Mount Brake: Gray

Side-Swing technology increases shifting performance

8 clamp Di2 Black

Works on 5-speed to 12-speed mountain and road bike cassettes and freewheel

Two internal width options available: 23mm for the gravel-centric and 30mm for the mountain-focused

Wolf Tooth Performance Headset - ZS44/28.6 Upper 6mm Stack Raw Silver MFPN=11600812.01 }TRP HY/RD Mechanical/Hydraulic Post MountWolf Tooth Performance Headset ZS44 28. 6 Upper 6mm Stack 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 durability and corrision resistance Ultralight stem cap with integrated spacer plus an aluminum bolt and a star nut O ring seal prevents water intrusion