SHIMANO GRX Di2 RD-RX817 Rear Derailleur

The SHIMANO GRX Di2 RD-RX817 rear derailleur with SHIMANO SHADOW RD+ is an electronic 11-speed rear derailleur that stands out for its quiet and precise shifting performance. Thanks to the Shadow RD+ chain stabilisation system, chain slap and unnecessary movement of the rear derailleur cage are prevented, which ensures smooth shifting performance. The on/off switch on the idler pulley allows the chain stabiliser to be switched off on slippery terrain.

Shifting with the GRX Di2 RD-RX817 rear derailleur is done electronically (SEIS – Shimano Electronic Intelligent System) by simply pressing the control buttons on the handlebars. This means that the rider does not need to exert any effort, keeping the handlebars firmly in their hands and allowing them to concentrate fully on the track. The GRX rear derailleur is perfectly suited for 11-40 as well as 11-42 tooth cassettes. In addition, the rear derailleur can be read out and updated or individually adjusted through the E-Tube connection. Please note that the individual components have the same firmware so that no malfunctions can occur.

Features of the Shimano GRX Di2 RD-RX817 rear derailleur 11-speed:

• Application area: Gravel, Trekking/Touring, Cyclocross
• Quiet and precise shifting performance on demanding terrain
• Speed range: 11-speed
• Electronic shift actuation (SEIS)
• 4 pivot bushings, fluorine-coated
• E-Tube connection ensures firmware updates
• Centre-length cage
• Capacity: 31 teeth
• Colour: Black
• Weight: 318g

Note: should you have any questions regarding compatibility or availability, do not hesitate to contact our customer service.