CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 68mm For SRAM DUB Spindle Gravel BLK Model=Seat Mast Toppers 37 BB/Frame Interface English BB

37 BB/Frame Interface English BB Shell Width (mm) 73 Weight 87 Spindle Interface Type SRAM DUB Defined Color Black

New steerer tube and fork crown interface

Shape and relief exactly fit the female anatomy in the typical racing-related sitting position

} Rugged nylon construction for the toughest trails Large 106x100mm platform provides superior stability Concave platform and 10 molded traction pins for reliable grip Cro-Mo steel axle with 9/16" spindle Sealed bearing and DU bushing

Combined with front hand pockets

CeramicSpeed BB ALPHA Bottom Bracket - English/BSA 68mm For SRAM DUB Spindle Gravel BLK Model=Seat Mast Toppers 37 BB/Frame Interface English BBA 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