Disc Shimano GRX Di2

The GRX disc brake version for 12x1 drivetrains with a left-hand brake lever without shifting function, featuring the design of the wireless Di2 ST-RX717 shift-brake lever.

Included in delivery:

Shimano GRX STI Disc brake lever BLRS717, left, Shimano BRRX410 brake caliper, front wheel adapter, brake pads, 100 cm brake hoses, oil not included

Shimano Disc STI BL-RS717 brake lever technical specifications:

• Disc brake levers only
• Gravel-specific ergonomics of brake lever and grip
• Brake lever with non-slip coating
• Optimised for handlebars with flare
• Adjustable grip width
• Disc brake hose SM-BH90-JK-SSR, length 100 cm
• Compatible oil: Shimano mineral oil, item no. Y83998010
• Recommended for bleeding: Item No. SMDISCBP

Shimano BR RX410 Flat Mount brake caliper Technical data:

• Aluminium brake caliper, flat mount installation
• 10 per cent greater spacing between the brake pads reduces braking noise
• 2-piston system
• Resin brake pads
• Compatible with L-type and K-type brake pads
• Weight: approx. 166 g
• Flat mount standard
• Recommended brake hose: SM-BH-90-JK-SSR
• Recommended brake discs: Shimano RT-CL700, IceTec SM-RT64, SM-RT800, SMRT67, SMRT66, SMRT86

Shimano BL RX717 Disc Brake Lever:

The BL-RX717 disc brake lever offers a very compact brake lever from Shimano for hydraulic disc brakes and 12x1 drivetrains. The left lever has no shifting function. Ergonomics specially adapted to the Di2 GRX Dual Control for gravel use are characterised by a brake lever pivot point raised by 18 mm, a curved lever shape and non-slip textures on the contact surfaces, which ensure optimum grip even on the roughest terrain. The SERVOWAVE brake lever absorbs a significant amount of travel at the start of its movement, allowing the pads to be brought into contact with the brake disc with minimal lever travel. Once the brake pad makes contact, the force transmission ratio increases rapidly. The majority of the lever travel is thus still available to increase braking power and modulate it more precisely. The brake lever is equipped with a reach adjustment. This allows the lever to be adjusted to the size of the rider’s hand, their riding style or personal preferences.

Shimano BR-R410 brake caliper:

The GRX BR-R410 disc brake caliper offers gravel riders a completely new sense of control thanks to improved modulation and a faster bite point. And despite its flatter design, the system is quieter and easier to maintain than ever before. The BR-RX410 gravel disc brake calipers, with 10 per cent more clearance to the brake pads, are particularly resistant to twisting and are approved for brake discs up to 160 mm. Fitted with brake pads featuring external cooling fins, brake heat is reliably dissipated. These calipers are compatible with all Shimano disc brake levers. Recommended brake discs: RT-CL700

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.

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