Shimano RD-RX817 Rear Derailleur GRX 11-Speed 42T Max Di2

With an integrated chain stabiliser mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. The RD-RX817 Di2 version offers the digital precision of Shimano’s electronic shifting and synchronised shifting and is compatible with mtb cassettes with a 42T low sprocket max.

FEATURES

• Silent and uninterrupted rear shifting on rough terrain
• Adjustable chain stabiliser prevents chain slapping and drops
• Shimano Shadow RD+
• Smooth and reliable mixed surface shifting
• Gravel-tuned clutch tension
• Compatible with current road Dual Control Lever

PRODUCT SPECIFICATIONS

Model No: RD-RX817
Series: GRX Di2
Colour: Series colour
Average weight: 318 grams
Top-normal spring type|Shimano Shadow RD+: Yes
Mount|Direct attachment (conventional): Yes
Mount|Direct mount: Yes
Low sprocket|Max.: 42T
Low sprocket|Min.: 40T
Pulley|Guide pulley bearing: Sealed bearing
Pulley|Tension pulley bearing: Sealed bearing
B-axle|Hollow axle: Yes
Di2 connectivity wired|Di2 shifting: Yes
Firmware update by E-Tube Project: Yes
SD50 port (pcs): 1
SD300 port (pcs): 0
SD50 connector (pcs): 0
SD300 connector (pcs): 0

ABOUT SHIMANO

In response to surging demand for global environmental preservation, bicycles now attract attention as the most eco-friendly means of transport. Shimano are dedicated to supply high-quality and high-performance components for different types of bicycles made in various countries and regions of the world, ranging from bicycles for the world’s top racers to daily users.

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