Shimano GRX 825 12-Speed Di2 Groupset Bundle

£2,060.00

Size

170mm 48/31

172.5mm 48/31

Quantity

Cycle to Work Schemes
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Shimano GRX 825 12-Speed Di2 Groupset Bundle

Electrifying Shimano’s 12-speed gravel range, the new 2x12-speed GRX RX825 Di2 groupset combines the brand’s peerless electronic shifting with gravel-specific gearing, engineered for riding, racing, and epic all-day adventures. This latest suite of Di2 components features dual-control levers refined for comfort and control, a SHIMANO SHADOW RD+ rear derailleur for superior chain stability, and a gravel-optimised front derailleur for crisp, precise shifts, no matter the terrain.

Designed for riders who thrive off the beaten track, exploring remote dirt roads, embracing the unknown, and tackling routes and races where the outcome is never certain, the GRX 12-speed Di2 delivers distraction-free, reliable performance in every condition.

Evolved Di2 Platform
The redesigned Di2 system offers rapid, pinpoint-accurate shifting alongside a wireless cockpit layout for uncompromising performance and rock-solid dependability. As with Shimano’s 12-speed DURA-ACE, ULTEGRA, and 105 Di2 groupsets, the GRX Di2 system is wired where it matters most. A central, multi-port internal battery supplies consistent, long-lasting power directly to both derailleurs via slim-diameter E-Tube wires, eliminating the need for external junction boxes and simplifying installation. This integrated battery remains securely mounted through the roughest roads, loose trails, or any path less travelled, while also offering straightforward charging.

Gravel-Specific Cockpit Design
The GRX Di2 cockpit is purpose-built for off-road confidence. Raised, ribbed-texture hoods and anti-slip brake lever blades ensure secure hand placement in wet, muddy, or bumpy conditions. Building on the legacy of the original GRX RX815 Di2 levers, a third Di2 function button is discreetly positioned on the inner face of each hood for intuitive access while riding.

Advanced Gravel Drivetrain
Optimised 12-speed gearing delivers exceptional efficiency across varied terrain, while Shimano’s proven HYPERGLIDE+ technology guarantees smooth, reliable shifts under load, whether climbing loose fire roads or accelerating out of a gravel chicane.

Refined Ergonomics and Interface
GRX sets a new benchmark for comfort and control, offering a cleaner cockpit layout and extensive customisation to suit every rider’s preference. The result is the perfect harmony of secure grip, intuitive operation, and fatigue-free handling on long, demanding rides.

In the Box:

RX825RF: ST-RX825 GRX Di2 12-speed right shifter with BR-RX820 hydraulic caliper
RX825LR: ST-RX825 GRX Di2 2-speed left shifter with BR-RX820 hydraulic caliper
RDRX825: RD-RX825 GRX Di2 12-speed rear derailleur (compatible with cassettes up to 36T)
FDRX825F: RX825 GRX Di2 12-speed double braze-on front derailleur
BTDN300: BT-DN300 Di2 internal battery (3-port)
EWEC300: EW-EC300 battery charging cable (1700mm)
EWSD300IL090: EW-SD300 E-Tube Di2 wire (900mm)
EWSD300IL120: EW-SD300 E-Tube Di2 wire (1200mm)
FCRX8202C81: FC-RX820 GRX 12-speed chainset (48/31T, Hollowtech II)
CSHG71012136: CS-HG710 12-speed cassette (11-36T)
CNM8100126Q: CN-M8100 XT/Ultegra 12-speed chain with quick-link (126 links)
RTCL800SI: RT-CL800 Ice-Tech FREEZA disc rotors (160mm, internal lockring, pair)

Please note: A bottom bracket is not included. Should you need advice on compatibility or setup, do get in touch.

Key Features:

2x12-speed Di2 electronic drivetrain
Gravel-optimised 12-speed gearing for versatile performance
Unparalleled ergonomics for all-day comfort and control
SHADOW rear derailleur with clutch for chain stability and protection
Wider chainline (+2.5mm) for improved tyre and frame clearance

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Shimano GRX 825 12-Speed Di2 Groupset Bundle

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