ENDURO BKC-0815 XD15 CERAMIC ANGULAR BSA THREADED BB68 & DUB - BLACK

Enduro Bearings' exclusive XD-15 Pro bottom brackets incorporate 15-degree angular contact XD-15 cartridge bearings housed in precision-machined aluminum cups that thread directly into the BB shell. Built with the same XD-15 steel used in the XD-15 Corsa, these sealed cartridge bearings feature deep-groove raceways designed to accommodate Grade 3 Silicon Nitride ceramic balls, enhancing contact area for superior durability and performance. Manufactured to exacting standards at Enduro’s California facility, the XD-15 combines corrosion-resistant, cryogenically treated nitrogen steel races with premium ceramic balls, delivering a top-tier bearing solution for demanding riders.

Bike Radar declared the XD-15 "undoubtedly the best bottom bracket we've ever tested," and we back this claim with an unlimited lifetime warranty on bearings and races. Unlike typical bearings, the XD-15 improves with use—the balls polish the races during break-in, enhancing smoothness over time. While other ceramic-hybrid bearings may offer immediate speed and power benefits, the Enduro XD-15 not only matches these from day one but continues to deliver increased speed and smoother performance with continued use, outperforming competitors that tend to slow down.

Selecting the ideal bottom bracket for the diverse range of bicycles available can be challenging. Enduro currently provides over 50 bottom bracket models designed to fit various shell types and crankset pairings, spanning multiple price and performance categories. Our threaded options include BSA, BSA 30, Italian, and the durable T47 systems. For press-fit frames, we offer the widely imitated, thread-together Torqtite bottom brackets as well as press-fit Delrin Cup designs. Additionally, our range includes flanged, double-row bearings compatible with 30mm cranksets in BB86 shells. Find your bottom bracket solution here!