Shimano GRX ST -RX810 STI Shifter & Disc Brake Caliper

GRX ST-RX810 STI Shifter & Disc Brake Caliper

There are few drawbacks to gravel racing and adventuring, but we´d wager that the largest has been deciding between road and mountain components to build up our drop bar bikes for off-road rallying. With chain slap in the rear, and hoods that aren´t built for rugged terrain in the front, things could get scary in the cockpit, but with Shimano´s release of its gravel-specific GRX groupset, both of those issues are flown by the wayside. Shimano´s GRX ST -RX810 STI Shifter & Disc Brake Caliper offer you shifters that are tuned specifically for gravel riding, with all-new hood designs that feature a more drastic slope to keep you secure when the going gets rough, and a redesigned pivot point on the lever to make pulling the brake all that much more confidence inspiring.

Shimano spent the last two years developing the new GRX group that´s specifically designed to tackle dirt roads and singletrack on drop-bar machines, and they incorporated plenty of feedback from dedicated gravel racers and enthusiasts in the process. The RX810 mechanical shifters are largely similar in design to Shimano´s current road shifters, offering the same light shifting action that rider´s have come to know and love. The changes lie in a refined lever shape that improves comfort for mixed terrain riding, as well as a textured anti-slip surface on the levers that improves braking grip and control. The RX810 hydraulic calipers are effectively the same as Shimano´s flat-mount road calipers, delivering powerful braking performance of ServoWave, with heat-dissipating Ice Tech brake pads, as well as simple set up and maintenance thanks to One-Way Bleeding technology.

Details

• Shimano´s gravel-specific calipers and shifters for 2x drivetrains
• Refined lever ergonomics improve comfort for off-road riding
• Textured anti-slip lever surface improves braking grip and control
• Powerful, consistent stopping power with Ice Tech brake pads
• Simple setup and maintenance thanks to One-Way Bleeding technology
• Includes one shifter and one pre-bled, flat-mount caliper
• Item #SHIU19I

Tech Specs

Lever

ST-RX810-R, ST-RX810-L

Lever Adjustability

reach

Actuation

[brake] hydrualic, [shifter] mechanical

Caliper

BR-RX810

Mount Type

flat

Fluid

mineral oil

Rotor

not included

Claimed Weight

[left] (lever) 284g, (caliper) 148g, [right] (lever) 286g, (caliper) 138g

Manufacturer Warranty

2 years