Rear derailleur Shimano GRX Di2 RD-RX815 SH+ 2×11-speed

SHIMANO GRX  DI2 – Rear Derailleur – SHIMANO SHADOW RD+ – 34T 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-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.

• Direct attachment
• E-tube port (pcs): 1
• Firmware update by E-TUBE Project
• Fluoric coated 4 link bushings
• Maximum smallest sprocket: 34T
• Minimum smallest sprocket: 30T
• Max front difference 17T
• Rear speeds 11
• Sealed pulley bearing
• Top-Normal Spring Type SHADOW RD+
• Maximum biggest sprocket: 11T
• Minimum biggest sprocket: 11T
• Total capacity: 38T
• Weight: 287 g