SRAM XX1 EAGLE 12V Gold Chain with Power LockspecsType of activity: CrossCountry, All Mountain, EnduroTransmissions: 12 speedLinks: 126 SRAM XX1 EAGLE 12V Gold Chain with Power LockspecsType of activity: CrossCountry, All Mountain, EnduroTransmissions: 12 speed Technical dataNumber of links: 126Lock Type: PowerLock ™Rivet Type: Hollow, ChromeDirectional: No (chain), Yes (chain closure)Recommended Groups: X01 Eagle, XX1 EagleMaterial: Steel Compatibilities: EAGLE Transmissions TechnologiesFlow Link ™: The chain's ultra-smooth inner plates are completely edge-free. This reduces friction on the cassette and platter for low noise and longer component life. The chain is much more resistant to twisting. Due to its smooth outer fins, the riveting is more uniform and the tensile strength is higher.PowerLock®: The PowerLock® as a way to connect SRAM chains without tools, safely and consistently. Although PowerLock® does not require any special tools for assembly, given the tight tolerance range of 10, 11 and 12 speed transmissions, each PowerLock® should only be used once.Hard Chrome ™: Hard chrome plating provides four times the wear resistance of other SRAM chains.X-Sync ™: Chains with X-Sync technology are adapted for use with X-Sync chainrings. This technology of sharp and narrow teeth with rounded and sloping edges is the best combination to provide the best possible performance even on unstable terrain.REFERENCE: 00.2518.024.020