SRAM GX Eagle Boost BB30 12-Speed Crankset

Pressfit 30™: This is a new design led by SRAM. It’s all the best from BB30 and Press-Fit bottom brackets in one captivating package. This bottom bracket is designed for 30mm spindle cranksets. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will are pressed into the frames bottom bracket shell. PressFit 30 features an integrated seal, pre-assembled into the cups, to further prolong bearing life. Frames need a 46mm inner-diameter bottom bracket shell to accommodate this system. PressFit 30 road requires a 68mm wide shell while PressFit 30 for MTB requires a 73mm wide shell. Huge weight savings, narrow Q-factor, more ankle clearance, greater bearing durability, stiffer/stronger crank construction, simple installation. Allows for larger diameter frame tubes increasing frame stiffness.

BB30: Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability and stronger crank construction.

X-Sync™ 2: X-SYNC™ 2 Eagle is the next evolution of SRAM X-SYNC™ technology. The aggressive teeth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-SYNC EAGLE™ design reduces friction and the accumulation of mud, grit and grime.

Weight: 610g - 662g