Shimano (Cycling) 105 RD-R7000 11-Speed Rear Derailleur GS (Direct Mount) Black IRDR7000GSL

Compatible chain: HG-EV 11-speed/ HG-X11
Low sprocket Max: 34T
Low sprocket Min: 28T
Max. front difference: 16T
Pulley_Teeth: 11T
Pulley cage: GS
Rear speeds: 11
Top sprocket Max: 12T
Top sprocket Min: 11T
Total capacity: 39T
Cage Length: Medium Cage