Extreme strength. Incredible precision. The PowerChain II from SRAM offers better front derailleur performance, and can upshift without sacrificing precision at the rear derailleur. The Step2™ riveting process increases the compressive force of the bolts for higher strength and durability.
SRAM chain manufacturers have developed PowerLock™ as a tool-free, safe and consistent way to connect SRAM 10 and 11-speed chains. Although PowerLock™ does not require any special tools for assembly, given the narrow tolerance range of a 10-/11-speed drive, each PowerLock™ should only be used once.