CeramicSpeed BB ALPHA Bottom Bracket - PF30, 73mm, For SRAM DUB Spindle, MTB, Black housing-guide this upper features at least

this upper features at least 50% recycled content

Integrated CO2 Inflator

Includes precision sealed bearings in both guide and tension pulleys to keep the drivetrain smooth and friction-free

chamfered inner cutting edges deliver versatile performance across a range of tasks

environmentally friendly formula

CeramicSpeed BB ALPHA Bottom Bracket - PF30, 73mm, For SRAM DUB Spindle, MTB, Black housing-guide this upper features at leastA bottom bracket built to outlast your frame BB ALPHA features hardened stainless steel races hand built with grade 3 Silicon Nitride ceramic balls, custom engineered seals and precision dust covers, delivering up to 500% better moisture protection, while still providing ultra low friction performance. The simplified spacer tube design and lighter 7075 aluminum cups ensure quick installation and a 10% weight reduction over previous generations. All