BKC-0741 - T47-External Threaded, Ceramic Hybrid, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for T47 Framesets and Shimano 24mm Cranksets TH-873 ABEC-3 Radial Bottom Bracket Bearing

ABEC-3 Radial Bottom Bracket Bearing featuring 52100 High-Carbon chromium alloy races paired with grade 10 Balls with 90% fill

BKC-0819 - Italian Thread-In

For bearing replacement:

it is also the most expensive alloy in the 440 series and requires multiple stages of heat and cryogenic treatment to achieve its superior mechanical properties

BKC-0741 - T47-External Threaded, Ceramic Hybrid, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for T47 Framesets and Shimano 24mm Cranksets TH-873 ABEC-3 Radial Bottom Bracket BearingBKC 0741 T47 Threaded, Ceramic Hybrid, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for T47 Framesets and Shimano 24mm Cranksets Enduro's top of the line BB solution, we press XD15 45 degree Angular Contact bearings into precision machined aluminum T47 cups that simply thread directly into the BB shell. Enduro XD15 bottom brackets and bearings are manufactured to the highest standards at the Enduro Bearings production facility in