Kogel PF30 for SRAM Dub Cross Seal 68/73mm is a smooth, long-lasting hybrid bearing upgrade designed to reduce resistance and keep your crankset spinning with less friction. Using premium grade Silicon Nitride (Si3n4) bearings and hardened, mirror-polished steel races, it helps minimise wear and contamination-related issues, with cross seal options encouraged for better defence in real riding conditions. It’s a great choice for riders who want quieter performance, improved reliability, and the confidence of a Kogel “1 + 1” warranty backed by annual servicing.