The sram pc xx1 11 speed chain has been built with a dedicated 1x design philosophy mdash making it simpler lighter and more durable than any other no matter where you ride no matter what yoursquore up against sram xx1 sram pc xx1 11 speed chain features 1x specific chain with 118 links designed for 10 42t cassette weight 252g hard chrometrade technology for maximum strength and wear resistance proprietary link finish provides improved life span 11 speed power l