The SRAM DUB Bottom Bracket Preload Adjuster Kit is a purpose-built service component designed to correctly set bearing preload on SRAM DUB bottom bracket systems. Proper preload is critical to smooth pedalling, bearing longevity, and eliminating play at the spindle — this kit gives you the means to dial that in precisely during installation or routine maintenance. If you're servicing a DUB-equipped drivetrain, having the correct adjuster on hand saves time and ensures the bottom bracket is set up the way SRAM intended. It's a straightforward addition to any workshop tray for mechanics and home wrenchers running SRAM's DUB standard. SRAM DUB Bottom Bracket Preload Specs at a Glance Compatibility: SRAM DUB bottom bracket systems Function: Bearing preload adjustment Application: Installation and maintenance use SKU: 11.6418.001.001