SHIMANO GRX Gravel groupset RX810 hydraulic disc brakes | 2x11
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. This is why Shimano has developed its own groupsets especially for this type of bike.
Shift/brake levers SHIMANO GRX disc brake ST-RX810 + BR-RX810 Flat Mount 2x11-speed | Set
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.
As usual, the dual-control lever of the GRX series offers outstanding ergonomics. The crisp shifting operations can be carried out quickly, precisely and with little finger force. This means you never lose control of your bike, even in hectic situations.
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 axle of the lever has been moved upwards. This improves ergonomics and at the same time reduces the necessary hand forces. The reach of the brake lever can also 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.
Crank SHIMANO GRX FC-RX810 | 2x11-speed
The FC-RX810 crank comes with a typical gravel gradation. With the large 48-tooth chainring, you can make good speed on the flat, but with the small 31-tooth chainring you can also climb longer ascents with ease. The chainline has been shifted outwards to make room in the frame for wider tires. Nevertheless, the Q-factor of 151 mm has remained in the green zone. The typically excellent Shimano workmanship and aerodynamically shaped elements on the outer chainring make the crankset a long-lasting and reliable companion on your tours.
RD-RX810 rear derailleur
There is a risk of the chain jumping off the sprockets, especially on bumpy surfaces. Shimano gravel rear derailleurs can prevent this from happening. A built-in stabilizer reliably prevents chain slap and keeps everything in place. This can also be switched off when riding on asphalt roads.
As you would expect from Shimano, shifting is quick and precise with little finger force. Even under adverse conditions, the chain shifts reliably from one sprocket to another. In order to be able to adjust the rear derailleur optimally, it has its own adjustment screw on which the tension of the Bowden cable can be set.
Thanks to the compact Shadow design, the rear derailleur sits closer to the frame. This slim low-profile design not only cuts a fine figure visually, but also protects the rear derailleur from damage or branches reaching into the path in the event of a fall.
Braze-on front derailleur FD-RX810
The GRX FD-RX810 front derailleur has been designed to suit the specific characteristics of gravel bikes. These usually ride with wider tires than road bikes. As a result, there was a risk that the inner chain guide could rub against them or collect dirt due to the small clearance. To avoid this and create more space in the frame, the chain line was moved 2.5 mm outwards and is now 46 mm. The GRX front derailleur has also been adapted to this. It also manages to bridge a chainring capacity of 17 teeth and thus extend the gear range. In order to be able to adjust it optimally, it has its own adjustment screw on which the tension of the Bowden cable can be set.
CS-R8000/CS-HG800 cassette
The cassette impresses with its high shifting performance and wear resistance. Gear changes are extremely precise, resulting in very short shifting pauses. An intelligent material mix of aluminum, carbon and steel increases the service life while at the same time reducing the weight of the cassette. The largest 4 sprockets of the CS-R8000 are connected by an aluminium spider and the following 2 sprockets by a carbon spider. You can choose between 3 different gradations for the cassette.
CN-HG701 chain
The adapted geometry of the directional chain offers outstanding shifting performance in every situation. Even mud and dirt have little chance of attacking the sophisticated design. In combination with SIL-TEC, Shimano's new surface coating, ultra-low friction is generated and thanks to the use of embedded fluorine particles, system performance is improved. The coating reduces wear, driving noise and sliding friction. It is also dirt-repellent and abrasion-resistant, which significantly increases the durability of components treated with SIL-Tec.
Inner bearing (at extra cost)
High-quality and multi-sealed bearings round off the overall package of the Ultegra groupset. The bearings are designed in all common standards and shine with the silky smooth running typical of Shimano.
Technical data:
Material: aluminum, plastic
Gears: 2x11
Brake type: hydraulic disc brake
Brake mounting: Flat mount
Crankshaft: 24 mm
Crank length: 170; 172.5 or 175 mm
Chainring gradation: 48-31 teeth
Chainring mount: 110/80 mm 4-arm
Cassette gradation: 11-30, 11-32 or 11-34 teeth
Freehub body compatibility: Shimano 11-speed Road
Front derailleur mounting: Braze-on (clamp optionally available)
Gravel groupset weight according to manufacturer: n.a.
Weight of gravel groupset itself weighed: from approx. 2115g (without bottom bracket; without brake rotors)
Scope of delivery:
1x shift/brake lever SHIMANO GRX disc brake ST-RX810 + BR-RX810 Flat Mount 2x11-speed | set including shift cables and outer covers
1x crank SHIMANO GRX FC-RX810 | 2x11-speed
1x rear derailleur RD-RX810
1x front derailleur FD-RX810 braze-on
1x cassette CS-R8000/CS-HG800
1x CN-HG701 chain
1x bottom bracket (optional)
Note: Weights may vary depending on the selected configuration.
Any tools and mounting accessories you may need can be found in our store.
The bleed kit, brake fluid and bleed adapter required to connect and fill the brakes can be found in our store.
Delivery without HR flatmount adapter for 160 mm brake rotor and without brake rotors!
