SRAM PC-X1 11 Speed Chain### Sram Says ### The PC X1 chain comes from a long line of dependable, lightweight chains that are built for toughness. Designed with SRAM's trusted XX1 geometry, the PC X1 features solid pin construction, 11 speed PowerLock and smooth, efficient shifting that you can count on every time out. This X1 chain is an integral part of the SRAM 1x drivetrain system. NO COMPROMISES. Designed with SRAM's trusted XX1 geometry Solid pin construction PowerLock