SRAM's new hybrid Ceramic BB Bearings exceed the needs of even the most demanding rides. They offer a performance advantage over traditional bottom bracket bearing that's almost too great to believe. Besides being 10% lighter than standard bearings, ceramic bearings require an astounding 78% less energy than the next most efficient BB on the market.
Ceramic bearings are more resistant to dirt and moisture and, when properly maintained, will outlast and outperform any other BB on the market. They utilize a lighter-than-normal seal along with stainless steel races and high-polish cups and have no equal when it comes to helping you reach terminal velocity more quickly and easily than ever before.