SHIMANO GRX disc brake set shift/brake lever ST-RX610 + BR-RX410 Flat Mount | 2x12-speed | single
Ever since Shimano launched the GRX, a specific groupset for gravel riders, it has been synonymous with reliability, durability and functionality. Many smaller optimizations increased the confidence of the bike community and will also bring many fans to the 610 version. It comes with a 2x12 drivetrain, mechanical control that is still up to date today and the usual perfect build quality and sets no limits to your gravel dreams. It also offers excellent value for money.
The GRX 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 forwards on rough surfaces and the shape has been optimized for wide-open positions.And to prevent your hands from sliding back and forth even when riding in the rain, a grippy material has been selected which also has good damping properties and therefore increases comfort.
The shifting performance is exactly what you would expect from Shimano. With the short, crisp lever travel and low operating forces, every gear change is a pleasure. Whether on the front derailleur or rear derailleur, you always get the right gear ratio without any problems.
The GRX brake lever has been designed so that you can stop quickly from all grip positions at any time. The pivot point of the lever has been moved upwards. This improves ergonomics and at the same time reduces the manual force required. In addition, the grip width can be individually adjusted so that bikers with smaller hands can also ride comfortably.
The performance of the GRX BR-RX410 brake calliper will also fully convince you. Perfectly finished and visually flat, it significantly enhances your gravel bike with flat mount. Its power is not visible from the outside. Nevertheless, the 2 pistons are very effective and bring you safely to a stop in any riding situation. Despite the 10 % increase in brake pad spacing compared to its predecessor, the pressure point is reached quickly and the excellent modulation helps you to stop precisely. In addition, the special design prevents annoying squeaking. The resin pads installed here guarantee high braking performance at all times and, compared to the metal pads, ensure less noise and less wear on the brake disc.
Bleeding is also very easy thanks to the one-way bleeding technology and can be done by anyone with a little manual skill.
Technical data:
Shift/brake lever material: aluminum, plastic
Brake caliper material: Aluminum
Technology: Reach Adjust, Dual Control Lever
Gears: 2x12 mechanical
Reach adjustment: yes, integrated (with tool)
Brake fluid: Mineral oil
Mounting: Flat mount (front incl. adapter, rear without adapter)
Bolt length: depending on frame
recommended brake rotors: Shimano RT-CL700
Brake pads: L05A-RF synthetic resin (with cooling fins)
Brake hose length: 1000 mm (front) or 1700 mm (rear)
Color: anthracite, grey
Weight according to manufacturer: 610g (set)
Weight self-weighed: 523g (left), 531g (right)
Scope of delivery: 1x shift/brake lever unit incl. brake calliper and cable (filled) | left - 2x or right - 12-speed