Shimano GRX RD-RX815 Di2 11 Speed Rear Derailleur For Double

Shimano GRX RD-RX815 Di2 11 Speed Rear Derailleur For Double

• Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world

• Low profile Shadow Plus design 11-speed rear derailleur with Di2 technology for fast and precise shifting performance

• Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting

• High tolerance cold forged aluminium link plates and body construction is extremely light and durable

• 11-speed E-tube Di2 compatible

• Compatible with 11-speed HG chains

• Wide gear ratio compatible up to 11-34T

• For use with double chainset

• Weight: 287g

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-RX815 DI2 version offers the digital precision of Shimano electronic shifting and synchronized shifting and is compatible with road cassettes with a 34T low sprocket max.

Technical specifications:

• Speeds: 11-speed

• Shifting: Di2 E-tube electronic shifting

• Colour: Black

• Max tooth: 34T

• Total capacity: 38T

• Weight: 287g

• Model number: RD-RX815

**Compatibility:

The GRX RD-RX815 rear derailleur is compatible with all 11-speed Di2 shifters including the below:**

• Dura Ace ST-R9150

• Dura Ace ST-R9160

• Dura Ace ST-R9170

• Dura Ace ST-R9180

• Dura Ace ST-9070

• Dura Ace ST-9071

• Ultegra ST-R8050

• Ultegra ST-R8060

• Ultegra ST-R8070

• Ultegra ST-6870

• Ultegra ST-6871

• GRX ST-RX815

• Shimano ST-R785