48 31 teeth 11 36 teeth 160

Shimano GRX RX820 2×12 – Your universal gravel groupset

The 2×12 version of the Shimano GRX RX820 is your perfect choice if you’re looking for maximum flexibility when gravel riding. With the 48/31 crankset, you can combine steep climbs with fast sprints. Mechanical shifting precision meets hydraulic braking power. This groupset is the heart of your adventures on gravel, sand, and asphalt.

The right translation for every surface

Whether it’s a bikepacking tour, a gravel race, or a relaxed exploration of the terrain, the 2×12 drivetrain offers you two chainrings for maximum flexibility. With the smaller chainring (31 teeth), you can effortlessly conquer even steep gravel climbs. The larger chainring (48 teeth) lets you really pick up speed on paved surfaces. Thanks to the 12-speed cassette, you’ll always find the perfect gear.

Reliability you can count on

The mechanical-hydraulic shifting system impresses with its proven Shimano design. The integrated chain stabilizer ensures your chain stays securely in place, even on rough terrain. Hydraulic flat-mount disc brakes provide reliable stopping power in any situation. The entire system is low-maintenance and durable, allowing you to focus entirely on your adventure.

specification

Scope of delivery

• 1x crankset Shimano GRX FC-RX820-2
• 1x Shimano GRX RD-RX822-GS rear derailleur
• 1x Shimano CS-M7100-12 cassette
• 1x chain Shimano XT / Ultegra Quick-Link CN-M8100
• 1x Shimano GRX front disc brake BR-RX820 + BL-RX820
• 1x Shimano GRX rear disc brake BR-RX820 + ST-RX820
• 2x brake lines Shimano SM-BH90-JK-SSR 
• 2 pairs of Shimano resin brake pads with cooling fins
• 1x disc brake adapter for front wheel (140/160 + 160/180 mm)