Shimano GRX RX820 Groupset

Shimano GRX RX820 Groupset

The Shimano GRX RX820 groupset represents Shimano’s dedication to creating the ultimate riding experience for gravel and off-road enthusiasts.
It combines rugged durability, precision, and ergonomic comfort — purpose-built to handle the unique challenges of gravel riding.
Below is an overview of its key features and benefits:

⚠️ Note: Chain not included!

Shifters

• Smooth and precise shifting: The mechanical 12-speed system ensures effortless and consistent gear changes in all conditions.

• Ergonomic comfort: Designed to reduce hand pressure, with an anti-slip texture for superior control on rough terrain.

• Flared-handlebar compatibility: Ideal for gravel riders who want more stability and control when tackling technical routes.

Crankset

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

• Gear range flexibility: Compatible with 10-45T and 10-51T cassettes, giving you the choice between close or wide gear ratios.

• Multiple crank lengths: Available in 170 mm, 172.5 mm, and 175 mm — allowing you to fine-tune your bike’s performance.

Rear Derailleur

• Integrated clutch: Keeps your chain stable and silent even on rough or steep terrain.

• Easy maintenance: Switch mechanism enables quick and hassle-free wheel removal.

• MTB cassette compatibility: Works perfectly with the 10-51T Micro-Spline cassette — ideal for steep climbs and demanding terrain.

Why choose the Shimano GRX RX820?

This groupset is perfect for riders seeking reliability, adjustability, and premium performance in a gravel-specific design.
Whether you’re tackling challenging trails or enjoying long, relaxed gravel adventures, the RX820 delivers the versatility and durability you can rely on.

What’s included in the Shimano GRX RX820 Groupset

Delivered as a complete set — ready to upgrade or build your next 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 rotors (140 mm / 160 mm).

• Also included
  Brake hoses and shift cables — fully prepared for installation of the drivetrain and hydraulic brakes.