CeramicSpeed BB ALPHA Bottom Bracket - T47 86mm For SRAM DUB Spindle Gravel BLK MPFN-PBB083 Requires 6mm chainring bolts (Sold

Requires 6mm chainring bolts (Sold Separately)

While carbon fiber allows for more optimal design and provides a far higher strength to weight ratio compared to steel and aluminum it is also more susceptible to crushing and cracking when improperly set up

Color Black Range 11-48 Cassette Cogs 11-13-15-18-21-24-28-34-40-48 Cassette Body Type Shimano/SRAM 8 9 10 Speed Drivetrain Speeds 10 Weight 425 Defined Color Black

Alloy can be used on spring rates 500 lbs and lower

CeramicSpeed BB ALPHA Bottom Bracket - T47 86mm For SRAM DUB Spindle Gravel BLK MPFN-PBB083 Requires 6mm chainring bolts (SoldA 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