Shimano DURA ACE Di2 ST-R9270+BR-R9270 12-speed rear disc brake flat mount (25mm) TOP-DEAL

Now equipped with SERVO WAVE brake technology, the Shimano Dura Ace Di2 ST-R9270 brake lever with BR-R9270 brake calliper offers unrivalled modulation and control. Wireless shifting ensures a clean look on the bike and enables uniquely fast and precise shifting. All this is integrated into a DUAL CONTROL shift/brake lever that is both lightweight and ergonomic thanks to the use of state-of-the-art materials and ensures optimum comfort and control even under challenging conditions (without original packaging).

THE SCIENCE OF SPEED: Shimano Dura Ace Di2 12-speed STI unit ST-R9270 + BR-R9270 disc brake

Shimano has been working for years to give you an advantage of seconds. The new 12-speed DURA-ACE R9200 is the fastest groupset ever and the pinnacle of SHIMANO technology and innovation. Speed was the driving force behind the development of this new generation road bike groupset. That's why every component has been revised, refined and optimised to make you even faster - whether as a breakaway from the peloton or in the final sprint on the Champs-Élysées.

The BR-R9270 2-piston hydraulic brake calliper offers flat-mount mounting and L03A resin disc pads with cooling fins. The completely newly developed hydraulic disc brakes provide an unprecedented balance of braking power and controllability. With the brand new monobloc design, the peak of high braking performance has now been reached. The lighter BR-R9270 brake calliper offers greater pad spacing and reduces noise levels. Finally, a new bleeding process makes maintenance easier than ever before.

Features - Shimano DURA ACE Di2 ST-R9270-R + BR-R9270 12-speed hydraulic disc brakes

• THE FASTEST AND MOST RELIABLE SHIFTING EVER
• Improved aerodynamics - revised DUAL CONTROL shift/brake levers with raised and rounded brake levers
• The drivetrain can be customised to the rider's preferences via the E-TUBE app
• Among other things, the shifting speed can be set, a fully or semi-synchronised shifting mode can be selected and the programme buttons on the shift lever can be assigned specific functions
• Wireless where it counts
• SHIMANO's self-developed, extremely secure Di2 wireless chip scores with low interference probability, unrivalled processing speed and lower energy consumption
• Fastest front and rear shifting
• The wireless STIs impress with high energy efficiency and a battery life of up to 1.7 years (CR1632)
• Quieter and easier to maintain brake components
• Outstanding brake control
• Excellent heat dissipation
• Easy wheel replacement
• Simple, clean bleeding system
• Easy adjustment and maintenance

Product features

• Application: Road bike
• Groupset: Dura Ace Di2 R9250
• Model: ST-R9270-R
• Type: Dual-Control (STI)
• Mounting: right
• Rear gear steps: 12-speed
• Optical gear indicator: no
• Grip width adjustment: Yes
• Handlebar diameter: 23.8mm/24.2mm
• Brake type: Hydraulic disc brake system (disc brake)
• Brake caliper: BR-R9270
• Brake calliper mount: Flat mount
• Brake pad: L03A Resin with cooling fins
• Brake hose: SM-BH90-JK-SSR
• One-way bleeding: Yes
• Brake fluid: Mineral oil
• Recommended brake disc: SM-RT900 (140mm/160mm)
• Compatible power cable: EW-SD300
• Firmware Update E-tube Project: Yes
• Number of E-tube connections: 2
• Number of E-tube connections: 0
• Di2 wireless chip: Yes
• Battery: CR1632 x 1

Cable length (select variant)

• 1350mm
• 1400mm
• 1450mm

Material

• Handle: CFRP
• Lever: Carbon, painted
• Brake caliper: Aluminium

Colour

• Series color

Scope of delivery

• 1 x Shimano Dura Ace Di2 ST-R9270 12-speed STI unit right
• 1 x Shimano Dura Ace BR-R9270 flat-mount disc brake caliper
• 1 x brake pads L03A-Resin with cooling fins
• 1 x brake hose SM-BH90-JK-SSR
• 2 x fixing bolt for brake caliper (25mm)
• 1 x cable connection kit (olive in the brake lever and the pin already installed in the cable)
• 1 x CR1632 battery
• The SM-BH90-JK-SSR brake hose is filled with mineral oil and pre-assembled on the BR-R9270 brake calliper! (without original packaging)

Brake disc SM-RT900 Center-Lock not included!

Technologies

SEIS SHIMANO ELECTRONIC INTELLIGENT SYSTEM

The innovative shifting technology of the SEIS is still based on the SHIMANO INDEX SYSTEM (SIS), whose outstanding shifting performance has proven itself over many years. The main difference between the systems is that the shifting process is no longer mechanical but electronic. This electronic shifting system has been extensively tested in recent years by several professional cyclists under all conceivable conditions, e.g. rain, mud, extreme cold, cobblestones and a combination of these factors. Shifting is done by simply pressing a button. No effort is required to change gear, which has clear advantages as the rider always has a firm grip on the handlebars and can concentrate on riding without being distracted by changing gear. The shifting system enables precise and effortless shifting in all situations, even with cold hands or when the rider is completely exhausted. The shifting performance can also no longer be affected by dirty or stretched cables, as the shift signal is transmitted electronically. The operating buttons work in a similar way to mechanical dual control levers, making it easy to get used to the SEIS.

E-Tube
The E-Tube platform offers optimum flexibility. E-Tube transmits interactive signals and supplies all parts with power via "plug & play" connections. E-Tube is resistant to corrosion, expansion and frost and guarantees low maintenance. And the SMPCE1 establishes the connection between PC and components to update the firmware. Digital devices stay up to date by updating the firmware and offer better function.

Shimano DURA-ACE Di2 R9250

• Manufacturer number: KR9270DRRDSX140A


Manufacturer:
SHIMANO INC.
3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
590-8577 Osaka
Japan
https://www.shimano.com


Person responsible in the EU:
Shimano Europe BV
High Tech Campus 92
NL-5656 Eindhoven
Netherlands
[email protected]
https://www.shimano.com