Review: SRAM X9 10 Speed Mountain Bike Component Group | Bike198
New Sram X-9 X9 2/3x10-speed Mountain Groupset Group Set White Lockout Type 2 Derailleur, Crankset, Cassette, Shifters, Chain - Bicycle Derailleur - AliExpress
SRAM PG-990 9 Speed Cassette: 11-32t - X9 & X0 Level - Gold Spider (Near Mint Used) - Bike Recyclery