Shimano GRX RR MECH RX827 Di2 12s SGS Sin 51T

Clean assembly design reduces workshop time, helping keep repairs consistent and easy to verify after installation RD-RX827 derailleur fitment supports stable chain guidance, accurate indexing and dependable drivetrain repair work Precision shaped parts help preserve shifting quality when replacing worn, bent or damaged components Rear Derailleur 12s SGS RD-RX827 GRX compatibility gives mechanics a focused service option for restoring original Shimano performance Robust construction handles repeated chain movement, vibration and load changes across varied riding conditions, Weight: 1.46 Pounds, Manufacturer: SHIMANO