CeramicSpeed PF29 MTB Bottom Bracket: Coated, 73mm, SRAM DUB, Black
CeramicSpeed PF29 MTB Bottom Bracket: Coated, 73mm, SRAM DUB, Black, A bottom bracket that offers bearing with extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings.Grade 3 Silicon Nitride ballsHardened racesReinforced polyamide cage and non-contact sealsHand built in Denmark