Kogel
Kogel Bearings specializes in one thing: replacing the weak link in your drivetrain. The premise is straightforward — the bearings that come stock in premium frames are typically the lowest-cost component on the spec sheet. Kogel builds ceramic alternatives engineered to spin more freely, run more quietly, and last longer than the hardware that shipped with your bike. They offer distinct seal options for road and off-road use, because conditions matter and a single seal specification doesn’t serve both.
The RA Cycles Kogel collection covers bottom brackets for every major frame standard — Italian thread, T47, BB86, PressFit 30, and more — plus the Kolossos oversized pulley cage and ceramic pulley wheel upgrades for Shimano, SRAM, and Campagnolo. If your drivetrain has a bearing, Kogel has a better one for it.