Wolf Tooth ZS44 Upper ZS56 Lower Espresso Premium Headsets

Top: A lightweight and durable headset made from aircraft-grade 6061 aluminum with three-stage custom sealing. Includes Enduro stainless steel sealed bearings. Features an ultra-light stem cap with built-in spacers, as well as aluminum bolts and star nuts. A custom-molded dual lip seal on the crown race protects the bearings in harsh environments. Compatibility: All frames using zero-stack headsets with a 44mm upper/56mm lower head bore. Material: 6061 aluminum Weight: 55-58g Stack: 6mm total stack Bottom: Compatibility: All frames using zero-stack headsets with a 44mm upper/56mm lower head bore. Material: 6061 aluminum Weight: 55-58g