The new SRAM Rival 22 groupset delivers immense performance across a broad variety of bikes & disciplines. Paved or not. Cyclocross or triathlon. Road racing or unchartered journeys. Rival 22 provides the ergonomics, efficiency & technology for finely tuned cyclists to meet each challenge & expand their limits. Dedicated cyclists' demands are different not less than the pro's. Their demands change & evolve with their riding & performance, whether they're race ready or adventure ready. So why settle for a group that's simply ratcheted-down to 75 percent of what the pros ride? Rival 22 delivers 100 percent of what cyclists dem&. Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability & stronger crank construction.GXP’s Gutter Seal design cuts friction & weight—improving both feel & performance A variant of the external GXP bottom bracket, Press Fit cuts weight by up to 40 grams & eases installation by allowing you to press the bearing cups into the frame instead of threading them. It requires no change to the crank spindle length & diameter. This is a new design led by SRAM. It’s all the best from BB30 & Press-Fit bottom brackets in one captivating package. This bottom bracket is designed for 30mm spindle cranksets. The key difference with Press Fit 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. Press Fit 30 will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life. Frames will need a 46mm inner-diameter bottom bracket shell to accommodate this system. Press Fit 30 for road will require a 68mm wide shell while Press Fit 30 for MTB will require a 73mm wide shell.