SHIMANO Dura Ace Di2 R9270 Complete Groupset

You don't want the best, you want the very best? With the Dura Ace, Shimano offers the perfect groupset for anyone who doesn't want to compromise. It now sets standards in functionality and quality, and you can see the Japanese company's many years of experience in every detail. You can get the complete groupset here at R2-BIKE.COM at an absolutely special price and in a beautiful box.
Technically, it is, of course, state of the art. The shifting commands are transmitted wirelessly to the front derailleur and rear derailleur. The latter are connected to a central battery, which is well hidden and protected in the seat post. 12 gears on the sprocket block are now standard and enable a wider gear range. This makes long uphill rides very comfortable, even for less-trained riders.

Brake rotor SHIMANO Dura Ace Center Lock RT-CL900 | 160 mm IceTech FREEZA
When developing the Dura Ace CL900 brake rotors, Shimano engineers succeeded in preventing heat-related deformation of the rotors. As a result, the CL900 rotors offer more reliable, more controllable braking performance and are quieter than ever before. Fortunately, the weight has remained at the same low level as the previous version.
Also on board is Shimano's Ice-Tech cooling technology, which ensures excellent heat dissipation and constant braking performance even on long, steep descents. The brake discs feature a three-layer sandwich construction with stainless steel sides and an aluminium core for significantly improved heat dissipation. This allows the temperature to be reduced by around 100 °C. In addition, the FREEZA aluminium cooling fins reduce the system temperature by a further 50 °C thanks to their increased surface area. The heat dissipation is supported by a special surface coating, which means that smaller brake discs can be fitted than usual. The service life of the Brake Pad is also significantly extended.

Crank SHIMANO Dura Ace FC-R9200 | 2x12-speed 50-34 teeth
The Dura-Ace FC-R9200 crank not only converts your pedal power into propulsion, but with its high rigidity, it also ensures extremely fast and precise shifting. The high shifting precision is supported by the optimised chainring design. To keep the weight low, the Japanese continue to rely on the proven Hollowtech II design of the crank arms. A large selection of crank arm lengths and chainring options ensures that the right crank is available for every type of rider and every terrain.

Front derailleur SHIMANO Dura Ace Di2 FD-R9250 | 2x12-speed
The advantage of electronic shifting systems is particularly noticeable in the front derailleur. At the touch of a button, the chain moves from one chainring to the other as if by magic, without any effort at all. It also thinks for itself and automatically adjusts its position with the chain skew to avoid grinding noises.
In developing the Dura-Ace 9250 front derailleur, Shimano has not just taken a small step, but a major leap forward. Weighing less than 100 grams, the FD-R9250 is not only considerably lighter, but it also impresses with its much more compact design, which reduces air resistance with its small frontal contact surface. A lot has also changed in terms of internal values. The shifting speed has been increased by 45% with the usual high shifting precision.

Rear derailleur SHIMANO Dura Ace Di2 RD-R9250 Shadow+ | 2x12-speed
The compact Dura-Ace 9250 rear derailleur delivers lightning-fast yet precise shifting. Even under medium and high loads, thanks to the low-profile design and Shimano Shadow+ technology, gear changes are quick and quiet. Despite its slim dimensions, the rear derailleur houses the battery charging port and the wireless mode button. With just one cage length, the rear derailleur shifts on cassettes from 11-28 teeth to 11-34 teeth, thus increasing the versatility of the top Japanese component group. The carbon composite rear derailleur cage ensures maximum weight reduction.

SHIMANO Dura Ace CS-R9200 | 12-speed 11-34 tooth cassette
The Shimano Hyperglide+ cassettes set new standards in off-road use with their smooth upshifting and downshifting across the entire gear range. For the Dura-Ace 9200 groupset, the Japanese have also adopted this technology for use on road bikes. Shifting is now possible without hesitation, even when applying maximum force on climbs or sprinting to the finish line. Among other things, longer teeth make this possible. Despite the new design and the additional 12th sprocket, the CS-R9200 cassettes are compatible with the previous 11-speed Road freehub bodies. Thanks to the use of 6 titanium sprockets (11-30T) or 7 titanium sprockets (11-34T) in the slower gears, Shimano has succeeded in keeping the weight of the cassettes at the extremely low level of the previous 11-speed versions.

SHIMANO Dura Ace / Deore XT CN-M9100 12-speed chain | 116 links with chain lock
The CN-M9100 chain is specially designed for the 9100/9200 chainrings and cassettes. Thanks to cut-outs on the inside of the plates, the chain harmonises perfectly with the Dynamic Chain Engagement+ (DCE+) Narrow-Wide tooth profiles of the new XTR chainrings. The design results in a tighter fit of the chain on the teeth. Vibrations are avoided, and the smoother chain run is not only noticeable when pedalling, but also manifests itself acoustically through a 4db quieter drive. Thanks to a new chrome-plated surface in combination with the proven SIL-TEC coating, the service life of the chain has been kept at the same level as the M9000 chain, despite the smaller outer width.

BT-DN300 internal battery
Integrated battery of the latest generation, which is recessed in the seat post or steerer tube. The internally routed cables give the road bike a tidy appearance. The integration of the battery into the frame also reduces the number of attachments that stand in the wind. The battery can remain in the bike for charging.

E-Tube cable SHIMANO for Di2 | EW-SD300-I internal
These cables connect all electrical components of the Shimano E-Tube system. They are used in the current Dura Ace Di2 9200 and Ultegra 8100 groupsets, among others. The more compact design enables the use of smaller, lighter electronic components and makes internal cable routing much easier.

SHIMANO EW-EC300 charging cable
With this charging cable, you can charge the battery of your Shimano 12-speed drivetrain via the charging port on the rear derailleur.

• Material: aluminum, plastic
  
• Gears: 2x12
  
• Brake type: hydraulic disc brake
  
• Brake mounting: Flat mount, an optional adapter may be required at the rear, depending on the frame
  
• Crankshaft: 24 mm
  
• Crank length: 165 mm
  Chainring gradation: 50-34 teeth
  
• Chainring mount: 110 mm 4-arm | Shimano asymmetrical
  
• Cassette gradation: 11-34 teeth
  
• Freehub body compatibility: Shimano 11-/12-speed Road
  
• Front derailleur mounting: braze-on (clamp optionally available)
  
• Battery life: approx. 2000 km
  

• 1x SHIMANO shift | brake lever Dura Ace Di2 ST-R9270 + disc brake BR-R9270 Flat Mount front
  
• 1x SHIMANO shift | brake lever Dura Ace Di2 ST-R9270 + disc brake BR-R9270 Flat Mount rear, WITHOUT 160 mm adapter
  
• 2x SHIMANO brake rotor Dura Ace Center Lock RT-CL900 | 160 mm IceTech FREEZA
  
• 1x SHIMANO crank Dura Ace FC-R9200 50-34 teeth | 2x12-speed 165 mm
  
• 1x SHIMANO front derailleur Dura Ace Di2 FD-R9250 braze-on | 2x12-speed
  
• 1x SHIMANO rear derailleur Dura Ace Di2 RD-R9250 Shadow+ | 2x12-speed
  
• 1x SHIMANO Dura Ace CS-R9200 cassette | 12-speed 11-34 teeth
  
• 1x SHIMANO chain Dura Ace / Deore XT CN-M9100 12-speed | 126 links with chain lock
  
• 1x SHIMANO BT-DN300 internal battery
  
• 1x SHIMANO E-Tube cable for Di2 EW-SD300-I | 600 mm
  
• 1x SHIMANO E-Tube cable for Di2 EW-SD300-I | 1200 mm
  
• 1x SHIMANO charging cable EW-EC300