Kogel Bearings believe ceramic bearings set the gold standard for your bicycle bottom bracket, derailleur pulleys and wheel bearings. The Silicon Nitride used to make ceramic bearings combines a set of material properties that makes it perfect for bicycle bearings.
The material is hard, resistant to wear, can be made into perfectly round balls with super tight tolerances and can be polished smoother than any metal. On top of all that, ceramic balls do not rust or oxidize.
Kogel Bearings takes pride in delivering a best-in-industry warranty. Their 2-year warranty means you can feel confident and secure about your next two seasons of riding.