a simple job; to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm ...

a snug & secure fit that also fully protects the face of the bearing delivers exceptional performance without any sacrifices. CeramicSpeed hand-built bearings carry the load from crank to frame with un-paralleled ...

on most of their frames, save the P5. In order to fit Shimano and FSA cranks into this oversized shell, this bottom bracket, complete with CeramicSpeed Bearings, needs to be pressed in. ...

is exclusively used by Trek's carbon road bikes. This bottom bracket uses Cross/MTB seals to protect from dirt and wear associated with CX and MTB riding.

low friction, improved power transfer, and a service life that far exceeds traditional steel bearings.