2021 SRAM X01 EAGLE XO1 1x12 12 Speed MTB Bicycle Bike Rear Derailleur Black New Pulley Compatible With 10-52T Cassette - AliExpress
2021 Sram X01 Eagle Xo1 1x12 Speed Mtb Bicycle Bike Groupset Kit Shifter Lever Trigger Right Side Rear Derailleur Black - Bicycle Derailleur - AliExpress
SRAM X01 12sp Cassette 10-52t, XG-1295 at BikeCo.com