Building upon Cane Creek's ongoing legacy of bicycle headset innovation, the Hellbender 70 Visco brings patented steering stabilizing technology to a wide variety of cycling disciplines. Designed to reduce high-frequency oscillation of the bicycle steering assembly, known as speed wobble. The Cane Creek Hellbender 70 Visco headset helps riders maintain control, reduce fatigue and ride with confidence. Stabilized steering with Cane Creek's Patented headset damping technology; utilizing Micro-thin plates with fluorocarbon gel in between. Includes a pre-set “mid-tune” damping, each layer; Damping effects are tunable for rider preference. 7075 T6 Aluminum construction. Sealed, stainless-steel Hellbender bearings. Item Specifications: Bearing Type: Cartridge, Color: Black, Defined Color List: Black, Material: Aluminum, S.H.I.S Upper: ZS44, S.H.I.S. Stem Clamp Diameter: 28.6,