Shimano Dura-Ace Di2 R9270 12V groupset - 52/36 D

Shimano Dura-Ace Di2 R9270 12V groupset, the brand new group of fastest and modern racing bicycles of all time. The new generation of racing bicycle components is completely oriented to speed and every decision taken from Shimano developers had only one goal: make you even faster. For this reason, Shimano technicians have revised every single component and function. In this way you can benefit from an optimal driving experience, regardless of whether you are running on the Champs-Élysées towards your destination or going up a steep climb to the home circuit.

• Shift / brake unit ACE DI2 ST-R9270 / BR-R9270 2 x 12: The new ergonomics of the DRA-ACE ST-R9270 Dual Control DRA-ACE LEVE LEVE lever offers a new level of comfort and control for racing cyclists. Thanks to the fastest wireless switching capacity and an even more precise braking force adjustment, Dura-ACE establishes new standards in terms of performance. Now equipped with the servoWave brake technology, the Dura-ACE ST-R9270 brake lever offers a level of control and control that is not second to anyone. The wireless change ensures that the bicycle appears clear and allows an extraordinarily fast and precise gear. All this is integrated into a double gear / brake lever which, thanks to the use of latest generation materials, is light and ergonomic and guarantees optimal comfort and control even in difficult conditions. Thanks to the brand new design, the Dura-Ace BR-R9270 hydraulic brake caliper is more compact than ever. The monocoque construction guarantees a reduced weight and a high rigidity and thus demonstrates that the high performance are also possible with compact dimensions. With the brand new monocoque construction, the peak of the high braking performance has now been reached. The brake caliper BR-R9270, lighter, offers a greater distance between the pads and reduces the noise level. Finally, a new vent process also makes the maintenance easier than ever.
• Dura-Ace RD-RD-RD-R9250 rear derailleur: with faster running changes in the largest Dura-Ace transmission ratio to date, Shimano's RD-R9250 rear derailleur opens possibilities for victory or personal record opportunities. The Dura-ACE RD-R9250 rear derailleur has an integrated charging connection and a wireless signal transmission unit, which allows super fast and precise switching operations. With only one length of the cage, the gearbox on the cassettes passes from 11-28 to 11-34 teeth, further increasing the versatility of the best group of racing bicycle components to the world.
• Dureader Dura Ace di2 FD-R9250: Despite the smallest and slightest building, the Dura-ACE FD-R9250 offers the fastest front derailleur change function on the market. The faster change is now even faster thanks to the Dura-ACE FD-R9250 front derailleur. Compared to the FD-R9150, currently the fastest front derailleur on the market, the new design with a weight of less than 100 grams guarantees 45% fastest gear changes on the front. The front attachment surface of the FD-R9250 has also been reduced to reduce air resistance.
• Ace FC-R9200 hard garnish: being the heart of the bicycle, the Dura-Ace FC-R9200 crank ensures that the minimum force of the pedal is not lost. Cave cranks and Cave crowns reduce weight as much as possible, while rigidity and accuracy of changed are optimized.
• The Dura-ACE FC-R9200 crank: offers two indispensable functions: the transmission of the pedal force in motive energy and the guarantee of extremely rapid and precise switching processes in the front. With the light Hollowtech II and exceptional Shimano crowns, the FC-R9200 garnish guarantees reliable features and performance. The FC-R9200 is also offered with shorter cranks to offer an option suitable for every type of driver.
• Dura cassette ACE CS-R9200: The 12-speed Dura-ACE R9200 12-speed rack gear changes allow the driver to concentrate completely on climbs, sprints and pass their limits without having to worry about the next gear change. The plugs with multiple teeth guarantee greater driving efficiency and guarantee compatibility with free Shimano 11 and 12 speed wheel bodies. Hyperglide + cassettes establish new standards for changing off-road use thanks to fluid change over the entire range of gears. It is time that this technology is also used on racing bikes. Even with the maximum uphill effort or during the sprint towards the finish line, the pilots no longer need to shy from changing gear. In all gears, the DRA-ACE R9250 transmission guarantees maximum efficiency thanks to larger teeth and guarantees compatibility with free wheel bodies at 11 speeds existing. Despite their 12-speed expansion and without causing a greater weight, the Dura-ACE CS-R9200 cassettes establish new standards in exchange systems for racing bicycles.
• CN-M9100 chain: the M9100 chain has been developed for pioneers of Shimano product groups (12 speeds). Thanks to an expanded internal plate, it offers better chain seal. The new chain is suitable for Quick-Link mounting and is treated SIL-TEC to increase the duration in off-road conditions.
• Brake Disc RT-MT900 CenterLock: The Shimano RT-MT900 brake disc defines maximum performance in the braking field and offers excellent braking power even with an aggressive driving style. ICE Technologies Freeza brake discs ensure through heat dissipation that braking performance is not compromised even on long descents. With the Shimano Centerlock fixing system, brake discs can be mounted quickly and easily thanks to the locking ring design.
• BATH BATTERY BT-DN300 DI2: The new DN300 battery has the same waterproof design appreciated for years by customers of2. Now with 3 connections, it offers stable performance for front and rear derailleurs for 12-speed shimano racing bicycles (if a fully wired version is selected). With the same dimensions as the previous model, the DN300 flat battery can be integrated into the seatpost Or in the frame to ensure a clear appearance. Now with 3 connections, the DN300 simplifies the passage of cables to the front derailleur and to the rear derailleur and offers continuous performance at any time. The third connection is for those who wish to keep the option of a wired version of the 6-speed Shimano systems open.
• EW-EC300 charging cable DI2: The new recharging connector EC300 has been specially designed for components of racing bicycles than 12-speed shimano. It can be connected to the attack on the exchange rate as well as the Shimano Power Meter pedals. The new cable connected to the gearbox is cheaper than the previous charging cables and can also be used to load Shimano power meter cranks.

• Hard front derailleur ACE DI2 FD-R9250.
• ACE DI2 RD-R9250 Hard Rear Derailleur.
• Hard cassette ACE CS-R9200 11 / 30T.
• Hard brake levers ACE DI2 ST-R9270.
• BR-R9270 1000mm / 1700mm brake pliers.
• BT-DN300 battery DI2.
• EW-SD300-I 1200mm X1 / 900MM X1 electric cable X1.
• Recharge cable EW-EC300 DI2.
• Chain CN-M9100 12 Speed ​​126 Maglie.
• Hard Ace FC-R9200 52 / 36D 170mm/172.5mm/175mm cranksets.
• 2 Brake discs MT-RT900 160mm Center Lock.