Product Details

The Shimano GRX disc brake for gravel use combines the BR-RX820 rear brake caliper with the BL-RX820 brake lever. It is mounted on the left side of the drop bars and is perfect for 1x setups, which only require a shift/brake lever on the right.

The lever and lever body ergonomics have been specially adapted for gravel use and for flared handlebars. The aluminium lever has a textured coating to prevent slipping and the reach of the lever can be adjusted with the help of a hex key. The pad engagement point is also adjustable. You also benefit from Shimano Servo Wave technology for a more targeted application and a more efficient use of braking power.

The flat-mount brake caliper provides excellent brake control, improved modulation and faster conversion of inputs. It is built more compact than its predecessor and has 10% more space for the brake pads, which reduces noise. The caliper is made of lightweight aluminium, has two brake pistons made of synthetic resin and a straight hose connection.

• Lever:
  • Hydraulic disc brake lever for gravel use and left-hand mounting on drop bars with 1x drivetrains
  • Great brake control on mixed terrain
  • Gravel-specific lever and lever body ergonomics
  • Reach adjustment (10.9 mm) with 2 mm hex tool
  • Faster brake contact thanks to Servo Wave
  • Anti-slip brake lever
  • Bracket optimised for flared handlebars
  • 1700mm hose
  • Adjustment Options: Grip width adjustment (screw), pressure point adjustment
• Caliper
  • Hydraulic disc brake caliper with flat-mount design for gravel use
  • More control through better modulation
  • Faster initiation of the braking process
  • Less noise thanks to 10% larger brake pad spacing
  • More compact than predecessor model
  • Simple 1-way bleeding process
  • 2 pistons made of synthetic resin

About Shimano
Established in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.