At Kogel Bearings, they believe ceramic bearings set the gold standard for bottom brackets, derailleur pulleys and wheel bearings. The ceramic material used, Silicon Nitride, is hard and wear resistant, and will not rust or oxidize. It can be precision machined into perfectly round balls with super tight tolerances and polished smoother than any metal, making it perfect for bicycle bearings.
- Ceramic bearings provide optimum drivetrain efficiency.
- Precision machined components ensure a smooth, squeak-free ride.
- Bomb-proof, all-weather seals to keep you riding no matter what.
- ROTOR 24mm
- SRAM GXP
Shipped with a separate GXP washer, this bearing can be plugged into a Shimano, Rotor 24mm or Sram GXP crank in a Trek BB90 road frame.
BB90 is used on Trek's carbon road frames. For aluminium frames and mountain bikes, check out the BB86 - BB92 collection.
We recommend selecting all-weather seals, as these will withstand bad weather and any off-road cycling you might do. For your best bike, racing bike or fair weather bike, select the road seal for a marginal friction saving.
If you have any questions or doubts about the compatibility for your bike ask us and we will help you pick the right one - available 24 hours a day on the live chat, or at email@example.com.