At Kogel Bearings , we 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 make 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 bearings do not rust or oxidize.
That's why we offer only podium-grade ceramic bearings in all our products.