CeramicSpeed T47/73 Bottom Bracket (Shimano) (Coated Races)

The CeramicSpeed T47/73 bottom bracket offers bearings with extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings. Grade 3 Silicon Nitride balls Coated races increase bearing service life by increasing hardness of race and reducing corrosion Reinforced polyamide cage and non-contact seals Hand built in Denmark CeramicSpeed products with coated bearings include a 6-year warranty Specifications BB Shell Width (mm)73BB/Frame InterfaceT47Bottom Bracket Shell I.D.47Defined ColorBlackSpindle Interface TypeShimano Hollowtech II