Shimano GRX RD - RX812 Rear Derailleur 11 - Speed frame-wheelset-box-shipping 4×21700 Li-ion batteries (7

4×21700 Li-ion batteries (7

Soft Kraton head and plastic handle for increased grip

Mini series

Barrel Butted Aluminum

Saddle Bag Clip Included

Shimano GRX RD - RX812 Rear Derailleur 11 - Speed frame-wheelset-box-shipping 4×21700 Li-ion batteries (7Based on the technology introduced by SHIMANO with the RX rear derailleurs, the GRX RD RX812 1x11 speed rear derailleur is characterised by quiet, smooth, precise and reliable shifting, even in the most demanding terrain, thanks mainly to the SHADOW RD+ chain stabilisation system. It prevents the chain from hitting and unnecessary movements of the rear derailleur cage, thus ensuring uninterrupted switching performance. SHIMANO's GRX, the first Gravel