Cane Creek Headset Top Assy ViscoSet External Cup 34mm 1-1/8" EC34/28.6 Short Top Black BAA0931K AVAILABLE CONFIGURATIONS TOP ASSEMBLY ONLY VISCOSET EC34 / 28.6 / H9 9mm Cover VISCOSET ZS44 / 28.6 / H8 8mm Cover (Pictured) FEATURES CUPS AND COVERS: 7075 T-6 Aluminum CROWN RACE: Fully face-sealed crown race BEARINGS: Dependable black-oxide, sealed cartridge bearings INTERLOK®: Interlok® spacer compatible HEAD-TUBE LENGTH: Design is head-tube length independent ASSEMBLY: Pre-Greased Cartridge. No Re-Grease Needed. OSCILLATION ELIMINATED ViscoSet (patent-pending) offers viscous damping to make bicycles safer by inhibiting the uncontrolled steering oscillation known as speed wobble. Speed wobbles are vibrations that start small and get worse due to harmonics. This frightening shimmy can affect the handling of any bicycle under certain conditions and is the result of many different factors. Utilizing specially designed damping plates above the bearing in the upper assembly, ViscoSet stops the oscillation before it can grow to a dangerous level. These micro-thin plates are inter-leaved in an encapsulated cartridge and connected to both the frame and the steerer tube. As they rotate against each other, a fl uorocarbon gel between each layer provides viscous damping and stops the oscillation of the handlebars before it grows to a dangerous level.
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