SRAM PowerChain PC X1 11-speed Chain – 11-speed ONE FOR ALL. 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. 1X™ specific chain designed with our XX1 geometry Solid pin construction 11-speed PowerLock™ Weight: 258g (114 links) Technology Highlight(s): X-SYNC™, POWERLOCK™ Compatible Gears: 1X11-speed Model: PC-X1 Pin Treatment: Solid Pin Weight: 258g Recommended Group: X1 Compatibility: 10-42 cassette, 1X11 Technologies 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. X-SYNC™ SRAM X-SYNC™ 1X chain rings provide the highest level of performance and durability. The SRAM X-SYNC™ tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC™ chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC™ rings are an integral part of the SRAM 1X™ drivetrain.