SHIMANO GRX - DI2 - Rear Derailleur - SHIMANO SHADOW RD - 42T max low sprocket - 11-speed

With an integrated chain stabilizer 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 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
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
Top sprocket: Max. 11T/Min. 11T
Low sprocket: Max. 42T/Min. 40T
Total capacity: 31T

PRODUCT SPECIFICATIONS
MODEL NO: RD-RX817
SERIES: GRX DI2
Color: Series color
Firmware update by E-TUBE PROJECT:
Total capacity: 31T
B-axle Hollow axle:
Mount Direct attachment (Conventional):
Mount_Direct Mount:
Fluoric coated link bushings: 4
Low sprocket Max.: 42T
Low sprocket Min.: 40T
Pulley G pulley bearing: Sealed bearing
Pulley Teeth: 11T
Pulley T pulley bearing Sealed bearing
Top-normal spring type SHIMANO SHADOW RD :
Top sprocket Max.: 11T
Top sprocket Min.: 11T
Rear speeds: 11
Di2 connectivity wired_Di2 shifting:
SD300 connector (pcs): 0
SD300 port (pcs): 0
SD50 connector (pcs): 0
SD50 port (pcs): 1