Shimano Dura-Ace ST-R9180 Di2 TT Shift/Brake Levers Description:

The Shimano Dura-Ace ST-R9180 Di2 TT Shift/Brake Levers are designed to bring lightening quick and precise Di2 shifting as well and the power and control of hydraulic disc brakes to time trial and triathlon bicycles. The sleek exterior of these levers features an adjustable reach brake lever to make sure everyone can comfortably slow their bikes down and customizable single button controls that include the ability to program the shifters so they can perform multiple shifts at once or be set up to just perform single shifts. These levers will come with a EW-SD50 port so they can quickly be integrated into the Di2 system, and this Di2 cable port along with the hydraulic brake hose are designed to route through the inside of a bullhorn/aerobar base for a very clean and aerodynamic appearance. Securing everything to the bars is an alloy wedge system that allows these levers to fit into any handlebar that has a 19 – 22.5mm diameter. Lightweight, seamless integration, and highly customizable, combine all three and you have a recipe for comfort and the speed to cross the finish line first.

Note: Hydraulic disc brake caliper and hydraulic housing are not included with these levers. Please see above for recommended disc brake caliper and hydraulic hose kit.

Features:

• Single button on inside of shifter utilizes Shimano Synchronized Shift for rapid cycling of the gears without having to change the hand position on the handlebars
• Can be set up to allow multi shifts, and shifting patterns are able to be customized with Shimano’s E-Tube Project software
• Brake lever reach can be adjusted so the distance between brake lever and handlebar can be optimized for a riders preference
• Internal routing of the housing and wiring through the bullhorn/base bars de-clutter’s the cockpit and allows for excellent aerodynamics
• Wedge style mounting secures these levers inside handlebars with an internal diameter of 19 – 22.5 mm by tightening a single bolt
• EW-SD50 port included with shift/brake lever to make wiring into the rest of a Di2 drivetrain a breeze
• If the rest of your Di2 drivetrain components use Shimano’s EW-SD300 electric wire, click on these underlined/highlighted words to be taken to an adapter that will allow the EW-SD50 port to connect with the rest of your electronic system.
• Recommended disc brake caliper to use with these levers is the Shimano Dura-Ace BR-R9270 disc brake caliper (sold separately)

Specifications:

• Shifter Style: Bar End
• Speed: –
• Derailleur Compatibility: Shimano Road Di2
• Shift Mechanism: Electronic (Wired)
• Adjustable Reach: Yes
• Brake Type: Hydraulic
• Brake Fluid: Mineral Oil
• Color: Black
• Weight: 99g (Each)

This product is expected to become available for purchase on Friday, November 21, 2025