SRAM PC991 9-Speed ChainAccurate shifting, excellent wear resistance, and superior durability with 8 and 9 speed compatibility: the SRAM PowerChain II won't let you down.We employ HollowPin™ construction on all SRAM top of the line PowerChains. HP yields plate retention strength, front and rear shifting efficiency, and low weight benchmarks unreachable in solid pin chain applications.Specifications:Compatible Gears:9Closing Link:PowerLink
