Shimano Rear Derailleur 2x11v Di2 - RD-RX815 34T Max

Thanks to the integrated chain stabilizer mechanism, the SHIMANO GRX derailleur offers a quieter experience and ensures safety and precision on mixed terrain. For smooth surfaces, the derailleur features an ON/OFF switch for the chain tensioner. The RD-RX815 DI2 derailleur is compatible with road cassettes with a max min sprocket of 34T. 

• Quiet and smooth shifting on rough terrain
• The adjustable chain stabilizer prevents chain impacts and drops
• SHIMANO SHADOW RD+
• Shifting for mixed surfaces, smooth and reliable
• ACTIVATION/DEACTIVATION of the stabilizer based on terrain
• Gravel-specific clutch adjustment
• Compatible with the current DUAL CONTROL ROAD LEVER
• Maximum difference between chainrings: 17T
• Smallest sprocket: Max. 11T/Min. 11T
• Largest sprocket: Max. 34T/Min. 30T
• Total capacity: 38T

 NB: Replacement component compatible with Ultegra and Dura Ace 11v Di2 electronic groups.