Shimano Dura-Ace Di2 ST-R9180 Hydraulic Disc Brake Assembled Set - F & R

The Shimano Dura-Ace Di2 ST-R9180 Hydraulic Disc Brake Assembled Set is purpose-built for triathlon and time trial riders who need precise hydraulic braking and seamless Di2 electronic shifting from an aero cockpit position. The levers are shaped for aerodynamic profiles and designed for integrated cable routing, keeping your front end clean without sacrificing control. This assembled set includes both front and rear levers and calipers, along with the hardware needed for a complete installation.

The mono-body caliper construction is designed to reduce weight and increase stiffness — qualities that matter when you're demanding consistent stopping power at race pace. A 10 percent wider pad clearance compared to previous generations is intended to minimize rotor rub, and the integrated lever switches allow for intuitive, customizable Di2 shifting without moving your hands from the bars. Compatible with 2x11-speed Di2 systems, it also supports Shimano's Synchronized Shift functionality for automated front and rear derailleur coordination.

Shimano Dura-Ace Di2 ST-R9180 Hydraulic Specs at a Glance

• Drivetrain compatibility: 2x11-speed Shimano Di2 electronic
• Brake type: Hydraulic disc, front and rear
• Caliper design: Mono-body construction for reduced weight and increased stiffness
• Pad clearance: 10% wider than previous generation — designed to minimize rotor rub
• Cable routing: Compatible with internal/integrated routing for aero cockpit setups