SRAM 7 speed cassette cassette PG-990 11-34 teeth 9 speed
Intended use:derailleur gearsWeight:307 gAdditional Information:CNC machined Alu-spider for more precise shiftingchains: PC-991, PC-971PowerGlide II TechnologyCassette:Number of Gears: 9Ration chainring: 11 gearsChainset:System Compatible: 9-speed