5DEV Bottom Brackets are jewelry for riders who ride hard. For the core cyclist chasing every watt and every detail, this is the ultimate BB. CNC-machined titanium bearing cups, a CNC-machined 6061 aluminum internal sleeve, and XD-15 ceramic-hybrid ABEC-5 bearings deliver glass-smooth spin, brutal durability, and zero-drama performance in all weather. Designed and machined in San Diego, it’s engineered speed with showpiece finish Compatible with SRAM DUB 28.99mm and 5DEV crank spindles Bottom Bracket includes: L/R Titanium Cups with Pressed XD15 DUB BB CXD-15 Radial Bearings, (1) Connecting Tube, (2) Bearing Washers, (1) 1mm Internal Spacers, (1) 2mm Spacer, (1) 3mm Spacer, (1) Anti-Seize pouch Park Tool BBT-47-16 for installation or removal (sold separately)
