Shimano GRX RX820 Groupset

The Shimano GRX RX820 groupset represents Shimano’s commitment to creating the ultimate riding experience for gravel and off-road cyclists.
It combines durability, precision, and ergonomic comfort — purpose-built for the unique challenges of gravel riding.
Below is an overview of its most important features and advantages:

⚠️ Note: Chain not included!

Shifters

• Smooth and precise shifting: Thanks to advanced 12-speed mechanical technology, gear changes remain smooth and consistent in all conditions.

• Ergonomic comfort: The shifters are designed to reduce pressure on your hands, with an anti-slip surface for extra control.

• Flared handlebar compatibility: Perfect for gravel riders seeking greater stability and control on technical terrain.

Crankset

• 2x12 configuration: Simple and reliable setup with 48T-31T chainrings.

• Gear range options: Compatible with 10-45T and 10-51T cassettes, allowing you to choose between tighter or wider gearing.

• Multiple crank lengths: Available in 170 mm, 172.5 mm, and 175 mm to perfectly match your riding style and preference.

Rear Derailleur

• Integrated clutch: Provides stable and silent shifting even on rough or steep terrain.

• Service-friendly design: A convenient switch allows for quick and easy wheel changes.

• MTB cassette compatibility: Works perfectly with the 10-51T Micro-Spline cassette — ideal for climbing and rougher gravel routes.

Why choose the Shimano GRX RX820?

The GRX RX820 is ideal for riders who demand reliability, adjustability, and high-end performance in a gravel-specific design.
Whether you’re tackling steep trails or cruising long gravel routes, the RX820 delivers the versatility and durability needed to go further with confidence.

What’s included in the Shimano GRX RX820 Groupset

Delivered as a complete set, ready for upgrading or building your gravel bike.

• Shifters + Brake Calipers
  Shimano GRX RX820 Dual Control Levers with integrated hydraulic disc brakes.

• Cassette
  Shimano 105/GRX CS-R7101 11-34T.

• Crankset
  Shimano GRX RX820 crankset (48-31T).

• Rear Derailleur
  Shimano GRX RX820 rear derailleur, compatible with 10-51T MTB cassettes.

• Rotors
  Two Shimano RT-MT800 brake rotors (140 mm / 160 mm).

• Also included
  Brake hoses and shift cables – pre-assembled and ready for installation of both drivetrain and hydraulic brakes.