Shimano GRX RD-RX825 Di2
Best high performance electronic shifting for dedicated gravel racing enthusiasts.
This electronic component streamlines gravel setups by integrating wireless connectivity and charging directly into the derailleur. It delivers precise, reliable shifting across rough terrain while effectively managing chain slap with an adjustable stabilizer, making it a sophisticated upgrade for modern mixed-surface riding.
$445.00
at
Red Rock Bicycle
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Who it's for
- Gravel racers seeking consistent performance in demanding conditions
- Off-road riders prioritizing a quiet and secure drivetrain
- Tech-savvy cyclists who want a personalized shifting experience
Who should skip it
- Budget-conscious riders looking for more affordable gravel components
- Long-distance bikepackers who prefer the simplicity of cable-actuated systems
- Weight-conscious climbers aiming for the lightest possible gravel build
Performance breakdown
Shifting Precision
Electronic actuation delivers flawless, consistent gear changes under any load.
Chain Management
Shadow RD+ technology keeps the drivetrain quiet on the roughest gravel.
Setup Simplicity
Wireless connectivity removes cable clutter and streamlines the initial installation process.
Terrain Adaptability
Adjustable clutch tension lets you tune performance for specific trail conditions.
Maintenance Ease
Integrated charging port makes battery management straightforward and hassle-free.
Durability
Rugged construction withstands the harsh realities of mixed-terrain riding.
Key Specs
Speeds
12-speed
Cage Length
Long
Max Rear Cog Teeth
36
Min Rear Cog Teeth
11
Total Capacity
40t
Mount Type
Hanger
Shifting Type
Electronic
Intended Use
Gravel, Mixed-terrain
Color
Black
Know before you buy
Still have a question?
Ask Metto anything about the Shimano GRX RD-RX825 Di2 before you decide.
