SHIMANO GRX RX817 Di2 1x11-speed rear derailleur
IRDRX817Tax included.
Shimano GRX 817 Di2 rear derailleur
The Shimano GRX RD-RX817 Di2 11-speed rear derailleur for Di2 electric transmission offers ultra-precise electronic gear shifting with incomparable fluidity.
With an integrated chain stabilizing mechanism, the SHIMANO GRX derailleur provides a quieter experience, as well as safe and precise shifting on mixed terrain. For rides on smooth surfaces, the derailleur has an ON/OFF switch for the chain tensioner. The RD-RX817 DI2 rear derailleur offers digital precision shifting and SHIMANO's Synchro-Shift system, and is compatible with road cassettes with a large cog up to 42T
The GRX Di2 RX817 rear derailleur in detail:
- Quiet, uninterrupted rear shifting over rough terrain
- Adjustable chain stabilizer prevents chain slap and jump
- SHIMANO SHADOW RD+ rear derailleur
- Smooth and reliable shifting on various surfaces
- Activation/deactivation of the stabilization switch depending on the terrain
- Clutch tension adapted to gravel riding
- Compatible with current DUAL CONTROL road levers
- Small gear: Max. 11T/Min. 11T min.
- Large sprocket: Max. 42T/Min. 40T
- Total capacity: 31T
