Amazon.com : JGbike Compatible 10 Speed MTB 4pc groupset for Shimano Deore M4100: Right Shift Lever SL-M4100-R,Long cage Rear Derailleur “RD-M4120-SGS“, Sunrace CSMX3 11-42T Black Cassette, KMC X10 Chain : Sports &
Hi, I have an old bike with a discontinued derailleur which has finally broken. It is a shimano STX RC rear derailleur (pictured). Can I use a modern part which is still