Shimano GRX RD-RX817 11-Speed Di2 Rear Derailleur

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GRX RD-RX817 11-Speed Di2 Rear Derailleur

With an integrated chain stabilizer mechanism, the Shimano GRX RD-RX817 11-Speed Di2 Rear 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 electronic shifting and synchronized shifting. and is compatible with mtb cassettes with a 42T low sprocket max.

Features:

Silent and uninterrupted rear shifting on rough terrain

Operates with Shimano Di2 for digital electronic shifting

Adjustable chain stabilizer prevents chain slapping and drops

SHIMANO SHADOW RD+

Smooth and reliable mixed surface shifting

Switch stabilizer ON/OFF to match the terrain

Gravel-tuned clutch tension

Compatible with current road DUAL CONTROL LEVER

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The product weight specified is an approximate weight based on the manufacturer’s specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

Specifications

Model Number: RD-RX817

Series: SHIMANO GRX DI2

Weight: 318 g

Direct Attachment: Yes

E-tube connector (pcs): 0

E-tube port (pcs): 1

Firmware update by E-TUBE Project: Yes

Fluoric coated link bushings: 4

Low sprocket: 42T (max) / 40T (min)

Rear Speeds: 11

Sealed bearing guide pulley: Yes

Sealed bearing tension pulley: Yes

Top-Normal Spring Type: SHADOW RD plus

Top sprocket: 11T (Max/Min)

Total Capacity: 31T