KCNC SXX1 Mountain MTB Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Sram Eagle XX1/X01/GX/NX Mechanical 12 Speed use in Black/Gold/Red Pulley Colors

I rarely write reviews, but I wanted to give this company a shout out for making this product.As of March of 2020, Sram does NOT sell a lower cage for their AXS X01 rear mech. In fact, they do not sell parts for the AXS X01 mech and they have NO crash replacement kind of program. If you bend your AXS X01 lower cage like I did, Sram will NOT help you out in any way. Their recommendation? Sorry, but you have to shell out for another complete mech.I'm so glad KCNC makes this lower cage because it saved me from buying a whole new derailleur. Now Sram does recommend against using any 3rd party cages and they also kind of threatened that my warranty would be voided, but guess what? There is no warranty for this if you crash it anyway; so might as well do everything you can to get back riding again.Only reason I gave it 4 stars instead of 5 is because there is a bolt included with this cage that does not fit with the rest of the AXS mech. The bolt that is on the AXS mech will not work with this cage. So my LBS mechanic had to grind the KCNC's bolt to make it work. I'm not sure what exactly he did, but it does work in all gears and it doesn't sound any louder than it used to be or anything like that. So I'm a happy customer.