Shimano Dura Ace R9270 12 Speed Di2 Disc Groupset Kit

Shimano Dura-Ace Di2 FD-R9250 12 Speed Front Derailleur

Despite its smaller, lighter design, the DURA-ACE FD-R9250 brings the fastest front shifting on the market.

The fastest just got faster thanks to the DURA-ACE FD-R9250. Tipping the scales under 100 grams, the new design shifts 45% quicker than Shimano's FD-R9150, already the fastest on the market. The frontal area of the FD-R9250 is also reduced decreasing aerodynamic drag.

Shimano Dura-Ace Di2 RD-R9250 12 Speed Rear Derailleur

The fastest ever shifting across SHIMANO's widest ever DURA-ACE gear range, the RD-R9250 is capable of both race wins and personal bests.

The DURA-ACE RD-R9250 integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length shifts cassettes from 11-28 to 11-34 bringing new versatility to the world's best road component group.

2x Shimano Dura-Ace Di2 ST-R9270 12 Speed Shifter w/ BR-R9270 Disc Brake Calipers

Disc Brake Caliper

With an all-new design, DURA-ACE BR-R9270 hydraulic calipers are the most compact yet. MONO-BODY construction ensures light weight and rigidity, proving that good things can come in small packages.

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.

Levers

All-new lever ergonomics on the DURA-ACE ST-R9270 dual control levers bring new levels comfort and control to road cycling. With the fastest wireless shifting available and even more precise brake modulation, DURA-ACE redefines performance.

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 the 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.

2x Shimano EW-SD300-I Electric Wires for Di2 12 Speed (700mm & 1200mm)

Electric Wire SD300 for Internal Routing

Shimano BT-DN300 Internal Battery 12 Speed

The new DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12-speed road derailleurs and shifters (if a fully wired option is selected).

With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying stable power at all times. The third port is for riders who seek the redundancy of Shimano's 12-speed Di2 wired option.

Shimano EW-EC300 Charging Cable 12 Speed

The new EC300 charging connector is designed specifically for Shimano's 12-speed Di2 road drivetrains. Connected via the rear derailleur, it is also compatible with Shimano power meters.

Charging of the new Shimano 12-speed Di2 road drivetrains is now accomplished with the EC300 charger cord. Attached to the rear derailleur, this new cord is less expensive than previous chargers and can also be used to charge Shimano power meters.