Shimano Black Shimano Dura-Ace Di2 ST-R9270 rear hydraulic disc brake 2025

Rear hydraulic disc brake
Brake: With an all-new MONO-BODY construction design, high performance braking has reached a new peak. The BR-R9270 caliper drops weight while also providing increased pad clearance, ensuring a quieter ride. Lastly, a new bleeding process makes maintenance easier than ever.

• One-piece structure maximizes stiffness and reduces weight
• 10% wider pad clearance decreases the chance of rotor rub
• Maintenance-friendly bleeding process
• Brake hose (kit): SM-BH90-JK-SSR
• Hose joint: Straight
• ICE TECHNOLOGIES pad compatible caliper
• Pad: K05Ti-RX Resin (w/o fin), L05A-RF Resin (w/ fin), K04Ti-MX Metal (w/o fin), L04C-MF Metal (w/ fin)
• Recommended brake lever: ST-R9270 ST-R9180
• Recommended disc brake rotor: RT-MT900 RT-CL900
• Oil: SHIMANO mineral
• ONE WAY BLEEDING
• Mount type: Flat mount
• Piston: 2
• Caliper:MONO-BODY
• Average weight: 97

Lever: Now featuring SERVO WAVE ACTION brake technology, the new DURA-ACE ST-R9270 brake lever delivers modulation and control like never before. Wireless shifting keeps your bike looking clean while offering our fastest, most precise gear changes available. All of this resides in a DUAL CONTROL LEVER to employs the most advanced materials to offer light weight and refined ergonomics that provide comfort and control for the most demanding conditions.
Clean Cockpit: Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast
1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries (Initial shifter batteries may have a shorter battery life than stated above.)

• Unparalleled ergonomics engineering refined with pro rider feedback
• Raised hood peak improves ergonomics, while a longer hood body increases hand support
• Compatible with satellite shifters
• SERVO WAVE technology optimizes brake control
• Lighter, smoother lever action
• Enhanced modulation thanks to an expanded braking control area
• Advanced Materials
• Carbon fiber brake lever and titanium hardware
• Compatible with wired connection (for e-bike application)
• Make DURA-ACE yours with custom button function and adjustable ergonomics
• Easily change button function with the E-TUBE app
• Find your optimum lever position with simple reach adjust
• Average weight: 350 (/pair)