The Di2 RX817 electric derailleur delivers stable shifting performance, quiet and smooth operation even in difficult terrain. Designed for 1x11 speed systems. Adjustable Shimano Shadow RD+ chain stabilizer. Compatible with current road shifting Dual Control Lever models. Suitable for cassettes with 11-40 to 11-42 tooth gear combinations. Tension range: 31 teeth.
Shadow RD+
Type: GRAVEL, Total package weight: 462g, 11 speed, Shackle type: GS-Long arm, Shadow RD+, Mounting type: Direct mount, Capacity: 31 teeth, Black, Material: Aluminum/Steel
Shimano GRX sets itself apart from the rest of the world of similar components thanks to its specific ergonomics, optimized gears, tremendous reliability and quiet operation of the shifting system. This is not a sophisticated set of road components. It represents a view of how cyclists want to explore their world. GRX represents the challenge to find new places and experiences that empower us all.