The Shimano 12-speed Shimano GRX Di2 Dual Control Lever delivers fast, wireless shifting for gravel and mixed-terrain riding

• New dual-control levers employ a gravel-optimized body shape cross-section for seamless integration with flared handlebars
• Rounder in shape, smoother handlebar-to-hood transfer, and larger surface area helps eliminate pressure points
• Front of the bike wireless gravel-specific cockpit. Two easy-to-change CR1632 batteries are long-lasting with a 3-4 year life
• Smaller diameter wires connect directly the battery to each derailleur, eliminating the need for junctions, and streamlining the build process
• Central internal battery simplifies charging and remains secure over the roughest roads, trails, or whatever less travel path you choose
• Ability to assign the brand new FRONT SHIFT NEXT function to any of the three shift buttons
• Customize your ride with the E-TUBE PROJECT Cyclist app
• Compatible with Shimano's satellite accessory shift buttons (sold separately)
• GRX RX820 2-piston caliper for 25mm frame mounts features 10% wider pad clearance to decrease brake noise
• One-way maintenance-friendly bleeding process for quick and easy prevention of air bubbles in the hydraulic system
• Includes finned L05A pads with a resin compound for enhanced heat dissipation
• Disc brake rotor sold separately
• Includes Brake Caliper: Yes
• Brake Caliper Mount: Flat Mount
• Hydraulic Hose Length: 1000mm front; 1700 rear (SM-BH90)
• Hydraulic Fluid Type: Mineral Oil
• Adjustable Reach: Yes
• Double or Triple: Double
• Rotor Included: No (sold separately)
• Pad Compound: Resin
• Adjustable Contact Point: No
• Front Der/Shifter Compatibility: Shimano Road Di2
• Brake Lever Actuation: Hydraulic
• Drivetrain Speeds: 12
• Color: Black
• J-Kit Technology: For some frames with internal routing, the J-Kit version may be easier to install, since everything is pre-bled. Disconnected lever comes pre-bled with connecting bolt/built in olive pre-installed. Brake caliper is pre-bled with brake hose connected/capped