Shimano GRX RX817 Di2 takavaihtaja 40-42t, 11sp

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

FEATURE close
Adjustable chain stabilizer prevents chain slapping and drops
Switch stabilizer ON/OFF to match the terrain
Gravel-tuned clutch tension
BENEFIT close
Silent and uninterrupted rear shifting on rough terrain
Smooth and reliable mixed surface shifting
Compatible with current road DUAL CONTROL LEVER
Top sprocket: Max. 11T/Min. 11T
Low sprocket: Max. 42T/Min. 40T
Total capacity: 31T