Shimano GRX ST-RX810 disc brake

The GRX disc brake with the left-hand brake lever without a gear-shifting function.

Shimano BL RX810 Disc Lever:

With the BL-RX810 disc brake lever, Shimano offers a very compact brake lever for hydraulic disc brakes and 11x1 drivetrains. The left lever has no shifting function. Ergonomics specially adapted for gravel use are characterised by a pivot point on the brake lever that is raised by 18 mm, a curved lever shape and non-slip textures on the contact surfaces, ensuring optimum grip even on the roughest terrain. These disc brake levers are based on the technology of the Ultegra series, but without the shifting mechanism. Shimano’s engineers have succeeded in integrating a mineral oil cylinder, including the complete braking system, into these disc brake levers, which remain very compact. The brake levers are made of aluminium; this technology guarantees maximum stiffness, durability and a robust design.

Shimano BR RX810 disc brake caliper:

The BR RX810 road bike disc brake caliper is torsionally rigid and approved for brake discs up to 160 mm. Equipped with brake pads featuring external cooling fins, brake heat is reliably dissipated. These brake calipers are compatible with all Shimano disc brake levers

Flat Mount Standard:

The new Flat Mount caliper standard for road bike brakes reduces weight and offers a significantly sleeker look. With the Flat Mount standard, the rear brake caliper sits directly on the chainstay; no adapter is required for caliper mounting. The bolts pass through the chainstay from below directly into the brake caliper. A flat adapter is still required on the fork. The adapter is screwed onto the rear of the fork leg, with the brake sitting directly on the adapter.

Shimano GRX Disc Brake Lever BL RX810 Technical Specifications:

• Adjustable reach
• Compatible oil: Shimano mineral oil, item no. Y83998010
• Recommended for bleeding: Part No. SMDISCBP
• Recommended brake calipers: BRRX810, BRRX400, BRR8070, BRRS785
• Weight: approx. 555 g

Shimano BR RX810 Flat Mount brake caliper Technical data:

• Aluminium brake caliper, flat mount
• 2-piston system
• Rensin L03A brake pads
• Recommended brake levers: STR8070, STR9120, STRS685, STR785, STR815
• Weight: approx. 260 g
• Flat Mount standard
• Recommended brake hose: SM-BH90-JK-SSR
• Recommended brake discs: Shimano IceTec SMRT800, SMRT900, SMRT86

Scope of delivery Shimano GRX disc brake:

Shimano GRX left disc brake lever BLRX810, Shimano GRX brake calipers BR-RX815, brake pads L03A, brake hoses SM-BH90-JK-SSR, 100 screws and small parts for assembly

The brakes are supplied without oil and a bleeding kit. Mineral oil and the bleeding kit (item no. 0431894) are required for installation

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com