SRAM saw the opportunity to make a better press fit system where all the best from BB30 and PressFit bottom brackets would be combined into one captivating package. PressFit 30 features an integrated seal pre-assembled into the cups to further prolong bearing life. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. This bottom bracket is designed for 30mm spindle cranksets. Advantages are huge weight savings, narrow Q-factor, more ankle clearance, greater bearing durability, stiffer/stronger crank construction and simple installation. Also allows for larger diameter frame tubes increasing frame stiffness.
• For use with 46mm ID BB shells • 42x30x7mm BB30 cartridge bearings housed in a press-fit, composite cup/sleeve assembly for use with a BB30 crankset in a Press-Fit 30 (PF30) frame • Press-fit 30 frame design eliminates the need for internal bearing c-clips and tension wave washers used in a traditional BB30 bottom bracket • Compatible with 68mm-92mm (BB30, BB30A, PF30, BB386 and BBright) • Easy installation • PressFit cups for lighter weight • Narrow Q-factor and more ankle clearance • Integrated gutter seal to prolong life • Integrated adjuster • 30mm spindle diameter