Shimano Dura-Ace Di2 R9250 2x12 36-52 Groupset W/ Disc Brake

The Shimano Dura-Ace Di2 R9250 2x12 36-52 Groupset with Disc Brake is a high-end drivetrain and braking system designed for road bike enthusiasts and professional cyclists. 

This groupset includes the following components:

1. Dura-Ace Di2 2x12 speed shifters: These electronic shifters provide smooth and precise shifting, allowing for quick and effortless gear changes.

2. Dura-Ace Di2 front and rear derailleurs: The front derailleur ensures smooth chain transfers between the chainrings, while the rear derailleur controls precise and reliable shifting between the gear cogs.

3. Dura-Ace Hollowtech II crankset: The crankset features a compact 36-52 tooth chainring combination, providing a wide range of gear ratios to tackle various terrains and riding conditions.

4. Dura-Ace 11-30 cassette: The 11-tooth to 30-tooth cassette offers a wide range of gears for different riding scenarios, allowing for efficient pedaling at both high and low speeds.

5. Dura-Ace disc brakes: The hydraulic disc brakes provide excellent stopping power in all weather conditions, offering consistent and reliable braking performance.

Overall, the Shimano Dura-Ace Di2 R9250 2x12 36-52 Groupset with Disc Brakes offers top-of-the-line components and technology, delivering high performance and reliability for road cyclists.

FEATURES

- battery mounting internally in the seatpost (adapter required), running time approx. 1000 km

- CR1632 battery in STI for wireless shifting

- front derailleur with more compact design than previous model, connected to battery via cable

- rear derailleur with wireless chip, LED display, charging socket and function button, connected to battery via cable

- brake caliper with 10% more clearance for brake pads

SPECIFICATIONS

Series                            : Dura-Ace Di2 R9250

Application                    : Road, Triathlon & Time Trial

Shifters & Derailleurs   : 2x, 12-speed (electronic, semi-wireless)

Brakes                           : disc, hydraulic (flat mount)

COMPONENTS

Crank                            : 170.0 mm, 172.5 mm, 175.0 mm (gradation 36-52)

Cassette                        : 11-30, 11-34

Front Derailleur            : braze-on

Rear Derailleur             : long cage