The R7000 rear derailleur has two options depending on what size cassette you run. The SS variant is compatible with 25T to 30T cassettes and the GS variant is compatible with a wide gear range, allowing 11-34T cassettes to be run.
Shimano 105 ST-R7000 SHIFTER right 11speed black USED with new gear cable
Shimano 105 Shimano CS-HG700 105 11-Speed Road Bike Cassette - 11-34T
Shimano 105 CS-R7000 105 11-speed cassette, 12-25T
SHIMANO 105 ST-R7000 105 Double Mechanical 11-Speed STI levers, Pair, Black
Shimano 105 FC-R7000 105 double chainset, HollowTech II 170 mm 50 / 34T, black
NT-BP036 Disc Brake Pads compatible with Shimano 105 BR R7070 105 BR RS505 RS305
