Deragliatore posteriore SHIMANO RD-R8050-SS DI2 gabbia corta max 30T 11S ULTEGRA Japan JP
●Linked to front derailleur. ■SHIMANO SHADOW RD (11 speed). ●Shimano Shadow RD. ●Average Weight: 240 g (FD-R8050 SS). ●Supports a wide range of gear ranges. ●new low-profile design.