Type: Hybrid Ceramic Deep Groove ball Bearings (steel rings with ceramic balls) Fits Zipp 404 (2009) Front HUB Bicycle Closures: Rubber Sealed Closure Side: Double Sided Seals Lubrication: Low Friction Grease Material: Corrosion Resistant Chrome Steel Balls: Low Friction Solid Ultra Light Ceramic Balls Brand: VXB Quantity: Set of two Bearings Pack#179863 Location : Front Hub Pack#179863.
eBay