Cane Creekâ€s engineers were tasked with developing a no-compromise, best-in-class premium headset. With the 110-Series, they did just that ” using optimal materials, engineering the most effective internals and designing the best aesthetics available in a headset. The 110-Series offers the widest array of configurations available in a premium headset and all backed up with our new 100% Lifeime Warranty!7075 T-6 Aluminum, Internally contoured and relieved to minimize weight and maximize strengthA captured compression ring sets the bearing preload and stays true no matter how you ride (no rocking or creaking) Premium split-lip sealed Hellbender stainless steel bearings give double the protection while decreasing frictionCompatible with Interlock spacersHand polished and anodisedUpper/Lower stack: 9/1mmWeight: 79g