SHIMANO GRX disc brake set brake lever BL-RX610 + BR-RX400 Flat Mount left
With the GRX, Shimano launched the first gravel-specific groupset on the market. Since then, the range of applications and the range of gravel bikes has expanded significantly. Shimano has responded to this development by expanding the range of the GRX groupset. With now 12 sprockets on the rear wheel and the option to choose between a 1x and 2x setup, you can adapt your drivetrain even better to your needs.
Just like its big sister RX820, the GRX RX 610 shift/brake levers have a grip geometry and surface texture specially optimized for gravel use. The upper hump has been raised to prevent you from slipping forward on rough surfaces. A recessed thumb recess ensures a firm grip on difficult terrain at all times. And to prevent your hands from sliding back and forth even when riding in the rain, a non-slip material has been selected which also has good damping properties and therefore increases comfort.
The brake lever has been designed so that you can stop quickly at any time from any grip position. It is slightly bent outwards and the axle of the lever has been moved upwards. This improves ergonomics and at the same time reduces the necessary manual force. In addition, the reach of the brake lever can be individually adjusted so that bikers with smaller hands can also ride safely.
The flat-mount brake calliper improves braking performance and modulation under all conditions. Maintenance work, such as bleeding or changing pads, is also easy to carry out. The L03A brake pads with cooling fins help to keep brake temperatures low, especially on long descents.
With this lever/caliper combination, you are just as comfortable and safe on the road as with the RX820 components, but by dispensing with the servo-wave technology and a somewhat simpler choice of materials, you get them at an excellent price/performance ratio.
Technical data:
Brake lever material: aluminum, plastic
Technology: Reach Adjust, Dual Control
Gears: brake function only
Reach adjustment: integrated (with tool)
Brake caliper material: Aluminum
Brake fluid: Mineral oil
Piston: 2
Mounting: Flat mount
Bolt length: n/a
Recommended brake rotors: Shimano SM-RT64
Brake pads: L03A Resin with cooling fins
Brake hose length: approx. 1000 mm (for front brake)
Color: black matt
Weight according to manufacturer: n.a.
Weight self-weighed: 410g (brake lever and brake caliper including filled hydraulic line)
Scope of delivery:
1x brake lever including outer casing and shift cable
1x flat mount brake caliper incl. L03A resin brake pad
Filled hydraulic lines