The Race Face Bottom Bracket BB121/124 is engineered for performance and longevity, featuring an improved bearing seal that enhances durability compared to previous models. Weighing just 69 grams, this bottom bracket is compatible with 41mm pressfit shells, making it ideal for a range of biking styles including XC, Enduro, Trail, DH, Fat Bike, and Dirt Jump/Slopestyle. With its precision design, the BB121/124 ensures a smooth ride and reliable performance on any terrain.