Shimano GRX RD-RX822 1x 12 Speed Rear Derailleur Size:Medium Cage Material: 6061-T6 CNC machined Aluminum

Material: 6061-T6 CNC machined Aluminum

Effective Rim Diameter 604 | 599

Shifting under load is made possible on the GX cassette through a combination of X-SYNC technology and cassette mapping

It’s incredibly lightweight—approximately 201 grams (250 length) for road bikes and 228 grams (330 length) for mountain bikes

all in a sleek aluminium body Mini 1+ comes complete with mounting kit

Shimano GRX RD-RX822 1x 12 Speed Rear Derailleur Size:Medium Cage Material: 6061-T6 CNC machined AluminumEnhanced chain security and quieter shifting for gravel riding. With an integrated chain stabilizer, the Shimano GRX RD RX822 1x 12 Speed Rear Derailleur delivers quieter shifting and more secure chain management in rough terrain. The chain tensioner has an ON OFF switch for easy wheel removal. Features RD RX822 GS rear derailleur with medium cage is compatible with 10 45T, 12 speed Shimano MTB cassettes, keeping you in the optimal cadence through