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.
Features
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
Specifications
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
Mfr Claimed Weight
TBC
Shimano GRX Di2 Rear Derailleur (RD-RX815)
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.
Features
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
Specifications
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
Mfr Claimed Weight
TBC
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