SHIMANO GRX DI2 Rear Derailleur 11-speed (34T max low sprocket)

RD-RX815

shimano_grx

RD-RX815

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.

  • Silent and uninterrupted rear shifting on rough terrain
  • Adjustable chain stabilizer prevents chain slapping and drops
  • SHIMANO SHADOW RD+
  • Smooth and reliable mixed surface shifting
  • Switch stabilizer ON/OFF to match the terrain
  • Gravel-tuned clutch tension
  • 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

TECHNOLOGIES

PRODUCT SPECIFICATIONS

MODEL NO RD-RX815
SERIES GRX DI2
Average weight 287 g
Top-Normal spring type_SHADOW RD+
   
Direct attachment
E-tube connector (pcs) 0
E-tube port (pcs) 1
Firmware update by E-TUBE Project
Fluoric coated link bushings 4
Low sprocket_Max. 34T
Low sprocket_Min. 30T
Max front difference 17T
Rear speeds 11
Sealed bearing guide pulley
Sealed bearing tension pulley
Top sprocket_Max. 11T
Top sprocket_Min. 11T
Total capacity 38T

SERIES LINE-UP

  • Cassette Sprocket SHIMANO DEORE XT 11-Speed MTB Cassette Sprocket
  • Front Derailleur SHIMANO GRX DI2 Front Derailleur 2x11-speed
  • Rear Derailleur SHIMANO GRX DI2 Rear Derailleur 11-speed (42T max low sprocket)
  • Shifting/Brake Lever SHIMANO GRX DI2 Hydraulic Disc Brake DUAL CONTROL LEVER 11-speed

REPLACEMENT PARTS

  • Rear Derailleur Pulley Pully set (RD-RX815)