Shimano GRX RX825 Di2 2x12-Speed Groupset – Electronic Precision for Gravel Performance
Unleash your gravel riding potential with the Shimano GRX RX825 Di2 2x12-Speed Groupset, the latest evolution in Shimano’s gravel-specific drivetrain lineup. Designed for rugged terrain and all-day adventure, this wireless electronic groupset delivers ultra-smooth shifting, precise braking, and a wide gear range built for efficiency and control.
Featuring Di2 wireless electronic shifting, the RX825 brings lightning-fast gear changes with minimal effort—even under load or on steep climbs. The 2x12-speed setup offers a perfectly balanced gear range ideal for varied terrain, while the hydraulic disc brakes ensure powerful and consistent stopping in all weather conditions.
Whether you're racing gravel, bikepacking, or exploring backcountry roads, the GRX RX825 Di2 gives you the confidence and control to ride further and faster.
Key Features:
- 2x12-Speed Di2 Electronic Shifting – Precise, wireless performance with customizable shifting logic.
- Gravel-Tuned Ergonomics – Flared levers and textured grips for off-road control and comfort.
- Hydraulic Disc Braking System – Superior modulation and stopping power on any surface.
- Wide Gear Range – Optimized for both climbing efficiency and high-speed cruising.
- Rugged Reliability – Engineered to withstand dust, mud, and long-distance adventures.
Perfect for: Gravel riders, endurance cyclists, and bikepackers who demand top-tier performance and reliability from their drivetrain.
Typical Group Contents:
Shimano GRX Di2 Rear Derailleur (RD-RX825)
Shimano GRX Di2 Front Derailleur (FD-RX825)
Pair GRX Ultegra Di2 (ST-RX825) Hydraulic Shift/Brake Levers, right & left
Shimano GRX Hydraulic Disc Brake Calipers with Pre-bled Hoses (BR-RX820), Flat Mount, Front & Rear, Finless pads included.
Shimano GRX Crankset
Bottom Bracket
Shimano Cassette (CS-HG710)
Shimano Chain (CN-M8100)
Shimano Di2 Internal Battery (BT-DN300)
2 x Shimano Di2 Wires (EW-SD300)
Shimano EW-EC300 Charging Cable
Rotors
