Enduro Bearings was founded in Oakland, California by Matt Harvey and Mike Alders — a bike industry product designer and a forklift parts machinist whose parallel careers converged in the mid-1990s when Matt realized that forklift-style full-complement bearings, scaled down, would dramatically outperform conventional bicycle bearings. The company started in the attic of a forklift business and grew into a 50,000-square-foot facility in Oakland, with additional manufacturing in Gilroy, Singapore, Taiwan, and China. Today, Enduro bearings are fitted to millions of bikes annually. Visit Enduro Bearings' website for their full catalog and technical specs.

At RA Cycles, the Enduro selection centers on their bearing and bottom bracket lineup. The XD-15 series uses nitrogen-infused steel races paired with ceramic balls — a design developed to address corrosion and wear in high-load drivetrain applications. TorqTite bottom brackets add angular contact geometry to that bearing package, optimizing load distribution for the forces generated in pedaling. The collection covers T47, BB86, BB386, and BBRight shell standards, alongside individual hub bearings, headset parts, and sealed cartridge bearings in ABEC-3 and ABEC-5 grades.

For a complete drivetrain upgrade, the bottom brackets collection covers options across every shell standard. Hub and wheel bearing replacement parts are in the hubs, skewers, and bearings collection, and headset bearing upgrades can be found in the headsets collection.