SRAM PC Red 22 Chain
SRAM PC Red 22 ChainJust as the rest of the Red 22 components have been precisely tuned for 11 speeds, the new PC-Red 22 chain was also engineered specifically for the new drivetrain. With the encouragement of cross chaining as part of the trim- and rub-free 'True 22' system by SRAM, the groupset's chain needed to be designed to handle the rigors of every imaginable gearing combination. The result is the PowerChain Red 22, pulling the best technology from its PC-1091R to create an entirely new, 11-speed chain.
The first characteristic to note is that the chain's link pins are hollow -- these hollow, chrome hardened pins save 20 grams or so over a chain with solid pins. In addition to being lighter, they're plenty strong so you can expect the PC-Red 22 to have equal durability. It's quite similar to the PC-1091R, though SRAM reworked it to have even more chamfer on the outer plates, added a new inner plate finish, and made it narrower. It's made specifically for 11-speed drivetrains, and it mates perfectly with the tooth shaping and pickup/release points on SRAM's Red 22 cassettes and chainrings for flawless shifting performance.