Designed from a long line of dependable, lightweight chains that are built for toughness, the recommended chain for NX, PC-1110. Designed with SRAM’s trusted XX1 geometry, the PC-1110 features solid pin construction, 11-speed PowerLock® and smooth, efficient shifting that you can count on every time out.   Optimized to work with X-SYNC™ rings for precise and dependable 11-speed performance. Fully compatible with all SRAM 1x™ drivetrains.   PowerLock SRAM chain engineers developed PowerLock as a tool free, sure and consistent way to connect our 10 speed chains. While PL does not require special tools for install, the especially tight tolerances of 10 Speed drive trains mandated that each PowerLock is good for a one-time application only.   Specifications Closing Link - PowerLock®. Outer Plate - Polished grey. Inner Plate - Polished grey. Pin Treatment - Chrome Hardened. Weight - 232 - 273g. Rivet Type - Solid Pin. 11 Speed.