SHIMANO GRX810 Di2 disc brake shift lever ST-RX815 + BR-RX810 flat mount brake caliper 11-speed | single
Gravel bikes are becoming increasingly popular among cyclists. The advantages are obvious. They have a more comfortable geometry than road bikes, are excellent off the beaten track and are suitable for longer journeys. However, conventional road bike components reach their limits on these bikes. Shimano has therefore developed its own groupsets especially for this type of bike.
The GRX shift/brake levers have a different grip geometry and surface. The upper humps have been raised to prevent you from slipping forwards on rough surfaces, while 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 Di2 gear system is particularly advantageous off-road. You only need a small click to throw the chain onto the next sprocket. This is quick and precise, and your hand can continue to guide the handlebars safely at all times. You can freely program the shifting logic via the E-Tube platform and check the status of the system.
The brake lever has also been designed so that you can stop quickly at any time from any grip position. It is slightly bent inwards and the axis of the lever has been moved upwards. This improves ergonomics and reduces the amount of hand force required. The reach of the brake lever can also be individually adjusted so that bikers with smaller hands can 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.
Technical data:
Shift/brake lever material: aluminum, plastic
Technology: Di2, SEIS, Reach Adjust, E-Tube
Gears: rear 11-speed, front 1/2-speed suitable (freely programmable with Di2)
Grip width adjustment: integrated (with tool)
Brake caliper material: aluminum
Brake fluid: Mineral oil
Mounting: Flat mount
Bolt length: n/a
recommended brake rotors: Shimano SM-RT800
Brake Pads: L05A-RF Resin with cooling fins
Brake hose length: 1000 mm (front), 1700 mm (rear)
Color: black
Weight according to manufacturer: n.a.
Weight self-weighed: 378g (front / left), 385g (rear / right)
Scope of delivery:
1x shift/brake lever left or right
1x flat mount brake caliper incl. L03A resin Brake Pad
Filled hydraulic lines