they only get better with time and use
its a major problem solver
BKC-54121 - XD15 Ceramic-Hybrid
LLB seals and 90% fill with high pressure water proof grease to withstand daily abuse of use and the elements
and XD15 Ceramic-Hybrid at the top of the line
BKC-0796 - T47-Internal, Threaded, Ceramic Hybrid, XD15, Angular Contact Bearing, Bottom Bracket for T47 Framesets and Shimano 24mm Cranksets they only get better withBKC 0796 T47 Internal, Threaded, Ceramic Hybrid, XD15, Angular Contact Bearing, Bottom Bracket for T47 Framesets and Shimano 24mm Cranksets Enduro Bearings' exclusive ceramic bearings with XD15 nitrogen steel races have been the ultimate longevity and low friction story in the cycling industry for over 12 years. This extra tough, stainless material will not corrode or rust as most other ceramic hybrids on the market will. While every other ceramic