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 an ON/OFF switch for the chain tensioner. The RD-RX817 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. It is compatible with mtb cassettes with a 42T low sprocket max.
Specifications
Average weight |
318 g |
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. |
42T |
Low sprocket_Min. |
40T |
Rear speeds |
11 |
Sealed bearing guide pulley |
_ |
Sealed bearing tension pulley |
_ |
Top-Normal Spring Type |
SHADOW RD+ |
Top sprocket_Max. |
11T |
Top sprocket_Min. |
11T |
Total capacity |
31T |