T47/73 Bottom Bracket aero bar part and you're left with a

and you're left with a great option for nasty days

High moisture management

two silicone seals and four nylon spacers

Elite Compatible with any bottle cage

T47/73 Bottom Bracket aero bar part and you're left with aThe CeramicSpeed T47 73 bottom bracket offers bearings with extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings. Designed for SRAM's DUB crank standard, built on a 28. 99 spindle A more contamination resistant BB design that uses an integrated dust cover with a snug and secure fit to fully protect the face of the bearing Carries the load from crank to frame with unparalleled durability and