Shimano GRX RX817 Di2 Rear Derailleur
Best electronic shifting for serious gravel and adventure riders.
This electronic component brings high-end digital precision to gravel riding. Its integrated clutch system effectively manages chain slap on rough terrain, offering a quieter and more secure ride without the maintenance headaches of traditional mechanical cables.
$400.00
More GRX options
Shimano GRX RX815 Rear Derailleur
$359.99
Shimano GRX RX400 Front Derailleur
$43.00
Shimano GRX Front Derailleur
$59.99
Shimano Stabilizer Unit
$14.00
Shimano GRX RX812 Rear Derailleur
$119.99
Shimano RD-RX820 Pulley Set
$25.00
Shimano Rear Derailleur Pulley Set
$25.99
Shimano GRX RX815 Derailleur
$290.00
Shimano GRX DI2 Rear Derailleur
$400.00
Shimano GRX Di2 Front Derailleur
$225.00
Shimano GRX RX810 Front Derailleur
$65.00
Shimano GRX RX400 Rear Derailleur
$60.99
Shimano GRX FD-RX815-F
$290.00
Shimano GRX RD-RD400 Rear Derailleur
$74.99
Shimano GRX Rear Derailleur
$145.00
Shimano GRX RD-R815
$349.99
Shimano GRX RD-RX825
$445.00
Shimano GRX RD-RX815
$359.99
Shimano GRX RD-RX822-SGS
$145.00
Shimano GRX RX810
$117.99
Shimano GRX RX400 Front Derailleur
$43.00
Shimano GRX FD-RX820-F Front Derailleur
$70.00
Shimano GRX RD-RX825 Di2
$445.00
Shimano GRX FD-RX820-F
$70.00
Shimano GRX RD-RX820
$70.00
Shimano GRX RD-RX827
$565.00
Shimano GRX FD-RX815
$289.99
Shimano GRX Di2 Rear Derailleur
$400.00
Shimano GRX RD-RX825 Di2
$445.00
Shimano GRX RD-RX400
$67.50
Shimano GRX RD-RX717 Di2 Rear Derailleur
$435.00
Who it's for
- Gravel riders seeking effortless, reliable gear changes.
- Adventurous cyclists tackling bumpy, technical off-road routes.
- Dedicated riders who frequently encounter harsh weather and muddy trails.
Who should skip it
- Budget-conscious cyclists or those preferring mechanical simplicity.
- Touring cyclists or riders who dislike managing electronic charging.
- DIY mechanics or those preferring straightforward component maintenance.
Performance breakdown
Shift Precision
Digital actuation delivers flawless, consistent gear changes every single time.
Chain Stability
The clutch mechanism effectively eliminates chain slap on aggressive gravel descents.
Maintenance Ease
Electronic shifting removes cable stretch and housing friction from the equation.
Terrain Versatility
Wide-range cassette support handles steep climbs and fast flats with ease.
Build Durability
Rugged construction withstands the harsh vibrations of mixed-terrain riding.
Setup Complexity
Requires Di2-specific knowledge and software configuration for initial installation.
Key Specs
Speeds
11-speed
Cage Length
Long Cage
Max Rear Cog Teeth
42T
Min Rear Cog Teeth
11T
Total Capacity
31T
Mount Type
Hanger
Shifting Type
Electronic (Di2)
Intended Use
Gravel
Color
Black
Know before you buy
Still have a question?
Ask Metto anything about the Shimano GRX RX817 Di2 Rear Derailleur before you decide.
