Road rear derailleurs

Gravel cycling has its roots in simplicity, inclusiveness and curiosity. Everyone from beginners to grizzled veterans rely on Shimano GRX, the first gravel-specific set - for smooth shifting, reliable braking and exceptional off-road comfort. Shimano GRX sets itself apart from the rest of the world of Shimano parts, and the new RX820 range offers premium performance at an incredible price, with thoughtful ergonomic design and gearing focused on gravel roads. This is not an elaborate set of road components. It represents a fundamental view of how cyclists want to explore their world. Shimano GRX helps you eliminate excuses, instead encouraging you to try a rough side road or last a little longer in the saddle. The purebred gravel derailleur GRX RD-RX820 is designed for a 2x12 speed drive, uses the proven Shadow RD+ construction and can fit up to a 36-tooth pinion at the rear of the cassette with two cranks. The weight of the derailleur is 270 g. Technical designation: RD-RX820 Total capacity: 42 teeth MAX number of teeth of the largest pinion: 36 teeth MIN number of teeth of the largest pinion: 34 teeth Maximum difference of teeth of converters: 17 teeth Technology: Shadow RD+ Weight: 270 g