Enduro Bearings presents the BB386 - TorqTite - XD15 Pro - 24mm bottom bracket, designed for BB386 framesets and Shimano 24mm cranksets. This exclusive product features XD-15 15° Angular Contact ceramic-hybrid cartridge bearings pressed into meticulously machined aluminum cups that easily thread into the BB shell. The XD-15 Pro bearings utilize XD-15 steel, the same material found in our XD-15 Corsa bearings, offering a 15° angular contact sealed bearing in a standard-sized cartridge. These bearings have deep-groove raceways, allowing for maximum-sized Grade 3 Silicon Nitride ceramic balls that increase contact area, resulting in improved performance and longevity.Manufactured at our facility in California, USA, Enduro XD-15 bottom brackets meet the highest standards. Our XD-15 bearings combine cryogenically-treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls in a proprietary process, creating the ultimate high-performance bearing setup. We are confident in the quality of our products, which is why we offer an unlimited lifetime bearing and race warranty.What sets these bearings apart is that they actually get better with use. The balls in the bearings make the races even smoother as they wear in. Other ceramic-hybrid bearings on the market may claim speed and power advantages from day one, but only Enduro XD-15 bearings continue to improve over time, becoming faster and smoother with each use.At Enduro, we understand that finding the right bottom bracket solution can be challenging. That's why we offer over 50 different types of bottom brackets to accommodate various bottom bracket shell and crankset combinations. We have threaded options for BSA, BSA 30, Italian, and the robust T47 system. For press-fit bottom brackets, we have the popular thread-together Torqtite options and press-fit Delrin Cup options. We even offer flanged, double-row bearings to fit 30mm cranksets in BB86 shells.Specifications:- Shell Fitment: BB386- Bearings: XD-15 Ceramic- Seal Type: LLB Grease Kluber NBU52 Grease - Axle Size: 24mm- Warranty: Unlimited Lifetime- Enduro Reference Number: BKC-0896Choose Enduro Bearings for top-quality bottom brackets that continue to exceed expectations.