Shimano Dura-Ace Di2 electronic road groupset

Experience the pinnacle of road cycling technology with the Shimano Dura Ace Di2 12-Speed Disc Brake Groupset (R9200 series). Engineered for World Tour professionals and elite racers, this flagship groupset delivers the fastest, most precise shifting available. The updated Di2 system features a semi-wireless design—meaning the shifters communicate wirelessly with the derailleurs, while a central internal battery powers the front and rear mechs. This creates an exceptionally clean cockpit while maintaining the rock-solid reliability of a wired power source.

Combined with Shimano's Hyperglide+ technology, the R9200 allows for seamless shifting under maximum pedaling load. Whether you are sprinting for the finish line or attacking a steep climb, the incredibly lightweight Hollowtech II crankset ensures maximum power transfer and stiffness without compromise.

Key Features:

• Semi-Wireless Di2 Shifting: Delivers lightning-fast, highly accurate electronic gear changes with a cleaner, aerodynamic cockpit setup.

• Hyperglide+ Technology: Enables flawlessly smooth shifting even under extreme torque and pedaling pressure.

• Pro-Level Gearing: Offers 12-speed cassettes and chainring combinations (up to 54/40T) tailored for ultimate speed and race performance.

• Refined Hydraulics: The disc brakes feature improved modulation and increased pad clearance for quieter operation and supreme descending control.

Specifications:

• Series: Dura-Ace R9200 / R9270

• Speed: 2x12-Speed Electronic Di2

• Brake Type: Hydraulic Disc Brake (Rim brake options available but rare)

• Chainring Gearing: 50/34T, 52/36T, 54/40T

• Cassette Ratio: 11-30T, 11-34T

• Bottom Bracket Interface: Hollowtech II

Typical Components Included:

• Shift/Brake Levers: Dura-Ace ST-R9270 (L & R Wireless Dual Control)

• Front Derailleur: Dura-Ace FD-R9250

• Rear Derailleur: Dura-Ace RD-R9250

• Crankset: Dura-Ace FC-R9200 (Optional built-in Power Meter available)

• Cassette: Dura-Ace CS-R9200 (12-Speed)

• Chain: XTR/Dura-Ace CN-M9100

• Brakes: Dura-Ace BR-R9270 Hydraulic Calipers

• Battery & Cables: BT-DN300 Internal Battery & charging cables