Have questions about product availability or order status?  CLICK HERE


Oscillation Eliminated

ViscoSet 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 fluorocarbon gel between each layer provides viscous damping and stops the oscillation of the handlebars before it grows to a dangerous level.


Additional information

Cups and Covers

7075 T-6 Aluminum


Low-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose parts


Dependable Zinc coated, Forty series sealed cartridge bearings


Tune-able by changing shim orientation


Interlok® spacer compatible

Headtube Length

Design is head-tube length independent


Pre-Greased Cartridge. No Re-Grease needed.

Stack Heights

External Cup (EC) – 22.2mm Top, ZeroStack (ZS) – 13.5mm Top

Other great products

DB Coil IL


Helm MKII AIR 29


eeWINGS Mountain


Hellbender 70 Bottom Bracket


Hellbender 110 Bottom Bracket


Looking for a specific product?