The Enduro Bearings BB386 Torqtite XD-15 Pro Bottom Bracket DUB is a top choice for cyclists seeking durability and performance. Designed specifically for BB386 framesets and SRAM DUB cranksets, this bottom bracket features the exclusive XD-15 Pro bearings from Enduro Bearings. These bearings are crafted with XD-15 15° Angular Contact cartridge bearings, which are pressed into precision-machined aluminium cups. This design allows them to thread directly into the bottom bracket shell, ensuring a secure fit. The XD-15 Pro bearings use the same high-quality XD-15 steel as the XD-15 Corsa bearings, offering a 15º angular contact sealed bearing in a standard-sized cartridge. The deep-groove raceways accommodate maximum-sized Grade 3 Silicon Nitride ceramic balls, enhancing contact area, performance, and longevity. Manufactured in California, USA, the Enduro Bearings BB386 Torqtite XD-15 Pro Bottom Bracket DUB combines corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls. This unique process results in a high-performance bearing setup. Enduro Bearings is confident in the quality of their product, offering an unlimited lifetime warranty on the bearings and races. One standout feature of these bearings is their ability to improve with use. As they wear in, the balls smooth the races, making the bearings faster and smoother over time. This sets them apart from other ceramic-hybrid bearings, which may slow down with use. Specifications Shell Fitment: BB386 Bearings: XD-15 Ceramic Seal Type: LLB Grease Kluber NBU52 Grease Axle Size: SRAM DUB Warranty: Unlimited Lifetime Enduro Reference Number: BKC-0899 Enduro Bearings offers a wide range of bottom bracket solutions to fit various bicycle models. With over 50 different types available, including threaded options for BSA, BSA 30, Italian, and the robust T47 system, as well as press-fit options like the Torqtite and Delrin Cup, Enduro Bearings ensures you find the right fit for your bike.