SRAM DUB BSA External Threaded Bottom Bracket - BSA Threaded - 68-73mm Shell - 28.99mm DUB YGroup_7033472090157 Important note: Park Tool AP-1

Important note: Park Tool AP-1 Adhesive Primer must be used to prep all components

12-point box and an open end

please check your owner's manual

4 x Spare O-Rings (2 for Adaptor Hoses

Compatible with virtually all derailleur-equipped bicycles including Shimano Direct Mount hangers

SRAM DUB BSA External Threaded Bottom Bracket - BSA Threaded - 68-73mm Shell - 28.99mm DUB YGroup_7033472090157 Important note: Park Tool AP-1SRAM DUB bottom brackets are where stiffness meets durability. SRAM has made it incredibly simple by integrating the relationship between chainring, crank, spindle and bottom bracket and provide a single replacement for 30mm and 24mm BB spindles options. SRAM has created a simple bottom bracket solution that provides better drivetrain performance, increased durability and stiffness without introducing a new frame shell standard to the industry. DUB