Keep your cadence steady and your composure intact, thanks to the impressive efficiency of the Shimano GRX 1 x 12-speed configuration meticulously crafted to support you in maintaining the ideal rhythm even on challenging terrain. Experience heightened chain security and smoother gear transitions during your gravel rides.

This Shimano GRX (1x12) rear derailleur, featuring an integrated chain stabilizer and a medium cage, ensures whisper-quiet gear shifts, improved clearance over uneven terrain, and enhanced control over your chain. The RD-RX822-GS model seamlessly pairs with 10-45T, 12-speed Shimano MTB cassettes, and its chain tensioner boasts a convenient ON/OFF switch for effortless wheel removal.