Cane Creek Headset Top Assy ViscoSet ZeroStack 44mm 1-1/8' ZZ44/28.6 Short Top Black BAA1068K. Available only as a top assembly. Choose from VISCOSET EC34 / 28.6 / H9 9mm Cover or VISCOSET ZS44 / 28.6 / H8 8mm Cover (pictured). The cups and covers are made of 7075 T - 6 Aluminum, and it has a fully face - sealed crown race. Dependable black - oxide, sealed cartridge bearings are used. It's Interlok spacer compatible and its design is independent of head - tube length. The pre - greased cartridge doesn't need re - greasing. The ViscoSet (patent - pending) feature is amazing! It offers viscous damping to stop the dangerous speed wobble. Speed wobbles start as small vibrations and get worse. ViscoSet uses specially designed damping plates above the bearing in the upper assembly. These micro - thin plates in an encapsulated cartridge are connected to the frame and steerer tube. The fluorocarbon gel between the layers provides damping, stopping handlebar oscillation before it becomes dangerous.

Using this Cane Creek top assembly is easy. Just install it on your bike following the standard headset installation process. Make sure to check that all parts are properly aligned and tightened. As for maintenance, since it's a pre - greased cartridge, you don't need to re - grease it. But it's a good idea to regularly inspect the bearings and covers for any signs of wear or damage. If you notice any unusual noises or handling issues related to the headset, it might be time to have it checked. Also, keep in mind that the ViscoSet feature is there to help with speed wobble, but don't push your bike to extreme conditions that could still cause problems. Enjoy a safer and smoother ride with this great product!