SHIMANO GRX rear derailleur RD-RX820 Shadow+ | 2x 12-speed
With the GRX, Shimano brought the first gravel-specific shifting group onto the market. Since then, the range of uses and the range of gravel bikes has expanded significantly. Shimano takes this development into account by also expanding the range of the GRX group. With 12 sprockets on the rear wheel and the option to choose between a 1-speed and 2-speed setup, you can adapt your drive even better to your needs.
The RX820 rear derailleur was specially developed for the GRX 2x12 drive with cassettes with 11-34 or 11-36 teeth for Shimano Road freewheel bodies. With this drive you have a very wide range and at the same time a very finely graded translation on board.
Thanks to the built-in Shadow RD+ chain stabilizer, the chain stays securely on the chainring even on the roughest gravel paths. As usual from Shimano, shifting takes place with little finger force, quickly and precisely. Even under adverse conditions, the chain changes reliably from one sprocket to the other. In order to be able to optimally adjust the rear derailleur, it has its own adjustment screw, which can be used to adjust the tension of the Bowden cable.
Thanks to the compact Shadow design, the rear derailleur sits closer to the frame. This slim, low-profile design not only looks good, but also protects the rear derailleur from damage or branches getting in the way in the event of a fall.
Material: aluminium, stainless steel, glass fiber reinforced plastic
Execution: 2x 12-speed
Compatibility: 12-speed Shimano shift/brake lever
Total capacity: 42 teeth
max. difference in front: 17 teeth (difference between smallest and largest chain ring)
max. largest sprocket: 36 teeth
min. largest sprocket: 34 teeth
max. smallest sprocket: 11 teeth
min. smallest sprocket: 11 teeth
Fastening: direct mounting
Weight according to the manufacturer: kA
Weight weighed: kA
Scope of delivery: 1x SHIMANO rear derailleur GRX RD-RX820 Shadow+ | 2x 12-speed