Everything you need to upgrade your bike to a super wide range 1×11 speed setup (cranks not included).
Shimano Deore RD-M5100 Rear Derailleur Shadow+ 11spd Long
Shimano Deore M5100 Cassette HG 11Spd, 11-51t
Shimano Deore M5100 Shift Lever Right 11Spd
Shimano 105/SLX CN-HG601 11sp Chain with Quicklink, 126 links