Shimano RD-RX815 GRX Di2 Rear Derailleurs
- SHIMANO SHADOW RD+ for DI2 (11-speed)
- Adjustable chain stabilizer prevents chain slapping and drops
- Switch stabilizer ON/OFF to match the terrain
- Gravel-tuned clutch tension
- Silent and uninterrupted rear shifting on rough terrain
- Total capacity: 42T
- Smooth and reliable mixed surface shifting
- Compatible with current road DUAL CONTROL LEVER
- Maximum front difference: 17T
- Top sprocket: Max. 11T/Min. 11T
- Low sprocket: Max. 34T/Min. 30T
- Total Capacity: 38T
- E-TUBE port: 1
- Pulley: 13T
- Rear Speeds: 11