SHIMANO ALIVIO 9 Speed Derailleur Kit for MTB Bike Rear Derailleurs CS-HG200-9 32/34/36T Cassette KMC X9 Chain Bicycle Parts - AliExpress
Shimano CS-HG50-9 9-SPEED CASSETTE SPROCKET | Tacoma Bike & Ski
Rear Derailleur touching Cassette since replacing 8 speed with 9 speed | Mountain Bike Reviews Forum
PG-950 Cassette | CS-PG-950-A1 | SRAM
In case anyone is wondering, on a Sora 9-speed derailleur, you can fit a 42 tooth sprocket and a 11-42 cassette with no issues. Shown on a 2016 Trek Crossrip Elite. : r/gravelcycling
Close up 9-speed cassette on rear wheel of bike, studio photo Stock Photo - Alamy