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Shimano GRX RX820 2x12S Disc groupset

Shimano GRX RX820 2x12S Disc groupset

Regular price $1,599.99 USD
Regular price Sale price $1,599.99 USD
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Gravel is all about simplicity, inclusiveness and adventure. Everyone from beginners to Gravel veterans can count on Shimano GRX, the first Gravel-specific groupset, for smooth shifting, reliable braking and unrivalled comfort. The new RX820 series offers top-level performance at an incredible price, with an ergonomic design and a drivetrain specifically for Gravel and all off-road adventures. The 12-speed GRX drivetrain systems offer precise and reliable mechanical shifting. This all-road-oriented 2x12v option combines wider gear ranges with smoother progressivity to keep you ahead of the pack.

Greater safety on any road - Gravel-optimised ergonomics
The GRX brake levers have a robust non-slip coating to ensure greater grip and control even in heavy rain, splashes and mud. The non-slip surface of the GRX hand guards guarantees constant control, even on the roughest descents. The non-slip surface of the GRX brake levers guarantees Shimano's legendary stopping power at all times, even in the presence of water or mud. The new shape of the GRX RX820 handguard distributes pressure over a larger surface area of the hand, maximising comfort on long rides.

Slowing down has never been so pleasant - race-ready braking system
The GRX BR-R820 disc brake calliper offers new levels of control, with improved modulation and a more immediate braking attack point. And despite its smaller design, the system is quieter than ever and maintenance is easier. (pads are included).

More chain stability and quieter and more stable gear changes for Gravel
The RD-RX820 rear derailleur is compatible with 12v 11-34D and 11-36D cassettes, and offers a wide range of ratios to maintain a comfortable cadence regardless of the type of terrain. The SHIMANO GRX 12v rear derailleur features an integrated chain stabiliser that ensures quieter shifting and safer chain handling in demanding situations. The chain tensioner is also equipped with an ON/OFF switch for pedalling on even surfaces.

Optimal ratios for group rides and aggressive competition
The SHIMANO FC-RX820-2 crankset offers a perfect balance of lightness and efficiency optimised for mixed terrain riding and racing. The double chainring meets the segmented needs of Gravel, offering closer and more progressive ratios necessary to maintain position in the group. The 2x12-v crankset is available with the 48-31D chainring combination and 170, 172.5 and 175 mm crank lengths.


1x Shimano Ultegra sprocket set CS-R8101-12 12V

1x Shimano GRX FC-RX820-2 crankset 2x12V

1x Shimano GRX 820 groupset components 2x12V

  • 1x Shimano CN-M8100 12V chain
  • 1x Shimano GRX RD-RX820 12v rear derailleur
  • 1x front derailleur Shimano GRX FD-RX820 2v
  • 2x Shimano RT-MT800 160mm centre lock discs
  • 1x Shimano GRX ST-RX820-L + BR-RX820 2v left-hand shifter
  • 1x shifter right Shimano GRX ST-RX820-R + BR-RX820 12v


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