Gruppo Shimano Dura Ace R9200 12-speed Upgrade Kit

Descrizione

The Shimano Dura Ace 9200 Di2 Disc 12 speed upgrade kit! At first glance, the Shimano Dura Ace R9200 Di2 Disc upgrade kit looks great. The all-black shiny finish immediately catches the eye. The shifting performance is second to none, even under load. The braking system has also been given a major overhaul.

The space between the brake discs and pads has been increased by 10%. As a result, the rotors are less likely to rub. The heat tolerance has also been increased, reducing the chance of annoying noises during descents.

Upgrade kit
This Shimano Dura Ace R9200 12 speed Upgrade Kit does not includes a crankset and rotors. This allows you to match this groupset with another crank, e.g. one with a power meter. You can also choose the rotors that best suit your bike.

Shifters
The ergonomics of the shifters have been further optimised based on feedback from riders from various professional cycling teams. You can better put your fingers under the shifters and the shifter covers feature more grip. It is also easier to adopt different hand positions. The stroke of the brake levers is adjustable. Additionally, the buttons are placed 1.5 mm higher, for upshifting and downshifting. This makes it easier to operate the buttons correctly even with gloves or cold.

Drivetrain
The shifting speed of the Shimano Dura Ace R9250 12 speed rear derailleur has increased by 58%; the shifting speed of the front derailleur by 45% compared to the Shimano Dura Ace R9150 derailleurs. And therefore shifts much faster and more efficiently than a fully wireless groupset. The shifting speed under load is also very impressive. The junction box is integrated into the rear derailleur, saving you a lot of space in the handlebars and bottom bracket. The groupset is also adjustable and rechargeable on the rear derailleur.

Braking System
The disc brakes have been given a major overhaul. The Dura Ace caliper is one-piece and CNC-milled. 10% more space has been created between the brake pads and the discs. This has ensured that the brakes can hardly touch when you are not braking. Nothing is more annoying than brake discs rubbing on during a climb or in a sprint. Braking power and metering are also noticeably improved. The maximum heat tolerance before deformation can occur has been improved by 66%.

Tecnologie

Semi-wireless connection
The Shimano Dura Ace 9200 Di2 Disc 12 speed group is a semi-wireless groupset, meaning there is only a cable connection between the front derailleur, rear derailleur and battery. This makes assembly a lot easier. A fully charged battery will last around 1,000 kilometres before you need to recharge it. The shifters both contain a button cell battery that lasts about 1.5 years before needing to be replaced. It also eliminates the need for a junction box but lets you set up and charge the groupset via the rear derailleur.

Shimano Di2 app
All adjustment options such as assigning shift buttons, way shifting or adjusting shifting speed can be done via the Shimano Di2 app. The function of the shift buttons is individually adjustable. Synchronised shifting or semi-synchronised shifting, where the front derailleur automatically shifts with it for the ideal chainline, is still among the options.

Servo Wave
The brakes use Shimano's Servo Wave Action. Basically, this technology lowers the speed at which the pistons move as they get closer to the rotor. As a result, you maintain the torque of engagement that Shimano brakes are known for, but brake dosage is greatly improved.

Compatibilità

• Shimano Dura-Ace ST-R9270 12 Speed Shifters (left+right)
• Shimano Dura-Ace BR-R9270 Brake Calipers (front+rear)
• Shimano Dura Ace RD-R9250 12 Speed Rear Derailleur
• Shimano Dura Ace FD-R9250 Front Derailleur
• Shimano Dura-Ace CS-R9200 12 Speed Cassette
• Shimano CN-M9100 12 Speed Chain (126 links)
• Shimano Electric Wire SD300 600 mm Black
• Shimano Electric Wire SD300 1200 mm Black
• Charger Cable 1700 mm
• Shimano BT-DN300 Internal Battery

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