Shimano grx rd-rx820 2 x 12v gear change 36 teeth max Shimano

SHIMANO GRX RD • RX820 SHADOW RD+ 12 • speed rear derailleur. Greater chain stability and quieter, more stable gear changes for Gravel. The RD • RX820 model is compatible with 12v 11 • 34D and 11 • 36D cassettes, and offers a wide range of ratios that allow you to maintain a comfortable cadence regardless of the type of terrain. It is equipped with an integrated chain stabilizer that ensures quieter shifting and safer chain management in the most challenging situations. The chain tensioner also has an ON/OFF switch for pedaling on uneven surfaces.

DERAILLEUR LENGTH: LONG
NUMBER OF SPEEDS: 2X12 SPEED
TYPE: DERAILLEUR