The Race Face Bottom Bracket BB121/124 is designed for high-performance cycling across various terrains, including XC, Enduro, Trail, and DH. With a robust double row bearing system and an improved bearing seal, this bottom bracket ensures longevity and smooth operation. Weighing just 69 grams, it is compatible with 41mm pressfit shells, making it an ideal choice for riders seeking reliability and efficiency in their bike setup. The BB121/124 is a perfect fit for those who demand quality and performance in their cycling experience.