Check the listing for details. Wolf Tooth Performance Headset Bundle EC34/28.6 & 30 Black Aluminum Bearings,. Condition: New. Listed at 99.90 USD. Perfect Performance Headset Bundle: Wolf Tooth EC34/28.6 Upper & EC34/30 Lower Black Aluminum, Cartridge Bearings, Precision Engineering for Mountain & Road Bikes Upgrade your bicycles steering and handling with our top-tier Wolf Tooth Performance Headset Bundle, designed for durability, precision, and seamless integration. Crafted from aircraft-grade aluminum and assembled with high-quality Black Oxide Cartridge Bearings, this headset pair offers an exceptional blend of lightweight performance and rugged reliability perfect for both mountain biking and road cycling enthusiasts. Key Features & Benefits: - **Premium Materials & Construction:** Machined from aircraft-grade aluminum ensures strength while maintaining an ultralight profile. Black Oxide Steel bearings provide high load.