SRAM Black Box Ceramic GXP Bottom Bracket cups. Speed-sapping friction? The Red Crankset virtually eliminates it with new hybrid ceramic bearings housed within the GXP BB's case. Ceramic bearings ride in a stainless steel race, and are lighter, stiffer, and longer-lasting than normal bearings.
Item Code: SREIFNGD
Select Options to Purchase *grayed-out boxes indicate out of stock options