Shimano GRX RD-R815
Best electronic shifting for serious gravel riders seeking reliability.
Engineered for the demands of gravel riding, this electronic component delivers precise, reliable shifting across mixed terrain. Its integrated clutch mechanism effectively manages chain tension, ensuring stability and security even on the roughest trails.
$349.99
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 RX817 Di2 Rear Derailleur
$400.00
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 enthusiasts prioritizing reliable, effortless gear changes.
- Adventurous riders needing dependable components for challenging environments.
- Cyclists building or upgrading a high-performance gravel bike.
- Gravel enthusiasts prioritizing reliable, effortless gear changes.
- Adventurous riders needing dependable components for challenging environments.
- Cyclists building or upgrading a high-performance gravel bike.
Who should skip it
- Budget-conscious riders or those preferring mechanical simplicity.
- Cyclists who prefer zero battery maintenance on their rides.
- DIY bike mechanics or riders valuing easy field repairs.
- Budget-conscious riders or those preferring mechanical simplicity.
- Cyclists who prefer zero battery maintenance on their rides.
- DIY bike mechanics or riders valuing easy field repairs.
Performance breakdown
Shift Precision
Digital electronic actuation delivers flawless, consistent gear changes every single time.
Chain Security
The Shadow RD+ clutch effectively eliminates chain slap on rough terrain.
Durability
Robust construction withstands the harsh vibrations of aggressive gravel riding.
Weight Efficiency
Solid build quality adds slight heft compared to pure road racing components.
Terrain Versatility
Optimized geometry handles mixed surfaces and varied gear ratios with ease.
Setup Simplicity
Straightforward installation and electronic calibration make tuning a stress-free process.
Key Specs
Model
RD-R815 GRX
Total Capacity
38T
Max Front Difference
17
Mount Type
Direct attachment/Direct mount
Weight
287g
Pulley Teeth
13
Series
GRX
Generation
RX800
Max Low Sprocket
34T
Min Low Sprocket
30T
Know before you buy
Still have a question?
Ask Metto anything about the Shimano GRX RD-R815 before you decide.
