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
Color Series color
Average weight 287
   
Mount_Direct attachment
Firmware update by E-TUBE PROJECT
Total capacity 38T
B-axle_Hollow axle
Sealed bearing guide pulley
Sealed bearing tension pulley
Mount_Direct mount compatible
Fluoric coated link bushings 4
Low sprocket_Max. 34T
Low sprocket_Min. 30T
Max. front difference 17T
Pulley_G pulley bearing Sealed bearing
Pulley_Teeth 13T
Pulley_T pulley bearing Sealed bearing
Top-normal spring type_SHIMANO SHADOW RD+
Top sprocket_Max. 11T
Top sprocket_Min. 11T
Rear speeds 11
Di2 connectivity wired_Di2 shifting
Pulley 13T
SD300 connector (pcs) 0
SD300 port (pcs) 0
SD50 connector (pcs) 0
SD50 port (pcs) 1