Shimano GRX RX800 Gravel Groupset (Black) (1 x 12 Speed) (10-51T)

Shimano GRX RX800 Gravel Groupset (Black) (1 x 12 Speed) (10-51T)
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Shimano GRX RX800 Gravel Groupset Description:

Gravel riders want gear they can depend on. The Shimano GRX RX800 Groupset is a workhorse – designed to take on the most rugged rides and come out ready for more. Sharing some components with Shimano's Deore XT mountain bike group, GRX features a clutch derailleur, wide-range cassette, and 1x gearing. While many riders are opting for high-tech electronic components, the RX800-series embraces the simplicity and reliability of mechanical shifting paired with the power of hydraulic disc brakes.

Note: GRX Crankset sold separately


  • 1 x 12 GRX "Unstoppable" groupset provides ample gearing for all-day adventure
  • Shifter hoods optimized for flared handlebars and rugged terrain
  • Servo Wave brakes offer better modulation and 10% wider pad clearance
  • Clutch derailleur keeps the chain in place over rough terrain
  • 1x setup simplifies shifting for offroad riding
  • Super wide range 10-51T cassette offers gear ratios for any ride
  • Requires rear wheel with Microspline freehub body
  • Groupset includes everything you need – except for the crankset and bottom bracket (which are size-specific)


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

Groupset Includes:

  • (1) ST-RX820 Right Shifter and Rear Brake Caliper (w/ Hose)
  • (1) BL-RX820 Left Brake Lever and Front Brake Caliper (w/ Hose and 160mm Rotor Adapter)
  • (1) RD-RX822 Rear Derailleur
  • (1) CS-M8100 Cassette (10-51T) (Shimano Microspline)
  • (1) CN-M8100 Chain
  • (2) RT-CL800 Disc Brake Rotors (160mm) (Centerlock) (Lockrings Included)
  • (1) Disc Brake Adapter for 160mm Rear Rotor

Groupset Does Not Include:

Package Includes:

This product was added to our catalog on April 17, 2024