Shimano GRX RX827 Di2 Groupset (Black) (1 x 12 Speed) (10-51T) (Electronic) (Wireless)

Shimano GRX RX827 Di2 Groupset Description:

GRX Di2 brings Shimano’s 12-speed Di2 technology to gravel with a 1x drivetrain setup that reduces clutter, simplifies operation, and is built tough enough to handle the grueling nature of gravel and multi-terrain riding. Featuring quiet and stable operation thanks to Shimano’s Shadow ES derailleur clutch, the RD-RX827 rear derailleur accommodates 10-51T 12-speed cassettes, lending riders a capable gearing range that complements the needs of gravel and all-road riding. Users will find comfort in each hand thanks to textured, ergonomic shifter hoods designed to work seamlessly with flared handlebars. GRX Di2 Dual Control Rear Brake/Shift Levers feature three buttons for a flexible and customizable shifting experience, while a 1×12 speed-specific left brake lever reduces weight and simplifies operation.

Note: GRX Crankset sold separately

Features:

• Robust, 1 x 12 GRX electronic wireless gravel groupset
• Shifter hoods optimized for flared handlebars and rugged terrain
• Servo Wave brakes offer better modulation and 10% wider pad clearance
• Automatic Impact Recovery function retreats derailleurs on impact, then instantly returns to position
• Wireless battery is shielded within the derailleur, safe from outside forces
• Clutch derailleur keeps the chain in place over rough terrain
• 1x chainring combined with 10-51T cassette lends a simplified, but expanded range
• Groupset includes everything you need – except for the crankset and bottom bracket (which are size-specific)

Specifications:

• Speed: 1 x 12 Speed
• Shift Mechanism: Electronic (Wireless)
• Brake Type: Hydraulic Disc
• Brake Mount: Flat Mount
• Cassette Drive Type: Microspline
• Cassette Teeth: 10-51T
• Rotors: 160mm (Front & Rear)
• Rotor Mount: Centerlock
• Color: Black

Groupset Includes:

• (1) ST-RX825 Right Shifter and Rear Brake Caliper (w/ Hose)
• (1) ST-RX825 Left Brake Lever and Front Brake Caliper (w/ Hose)
• (1) RD-RX827 SGS Rear Derailleur
• (1) CS-M8200-12 Cassette (10-51T) (Microspline)
• (1) CN-M8100 Chain
• (2) RT-CL800 Disc Brake Rotors (160mm) (Centerlock) (Lockrings Included)
• (1) BT-DN320 Rear Derailleur Battery
• (1) EC-DN100 Battery Charger
• (1) Disc Brake Adapter for 160mm Rear Rotor

Groupset Does Not Include:

• GRX 1x Crankset
• Shimano Bottom Bracket

Package Includes:

This product was added to our catalog on June 24, 2025