Shimano Dura-Ace R9270 Power Groupset
The Shimano Dura-Ace R9270 Power Groupset comprises the top of the range gear, brake and power meter components for professional-level bike builds. The electronic Di2 gears adopt a semi-wired format that sees wireless STI levers send gear change signals to the rear derailleur. The rear derailleur acts as the system's brain and is hard wired to the front derailleur and internal battery. Using this semi-wired format, Shimano has offered 1000km of derailleur run time while also granting more powerful gear change actions for quicker gear shifts. An updated E-TUBE iOS and Android app partners the gear system, offering the rider opportunity to fully customise the gear change behaviour.
The 12-speed cassette adds a sprocket to promote less aggressive gear jumps and increased gear ranges and incorporates Hyperglide+ sprocket technology that, along with the more powerful derailleurs, ensures super slick operation. A HollowTech II aluminium crankset is light and ultra-rigid and includes super-accurate, dual-sided power measurement to facilitate serious training sessions.
The STI levers have more pronounced hood peaks and elongated hood bodies to grant additional hand positions, and the carbon levers feature Servo Wave braking technology to reduce empty lever travel and heighten braking control. In addition, these levers link to a one-piece hydraulic disc brake caliper that features pads that have 10% increased spacing to quieten noise after prolonged braking.
Includes
- Rear derailleur: Shimano Dura-Ace Di2 R9250 12-speed - E-tube - Shadow design
- Front derailleur: Shimano Dura-Ace FD-R9250 Di2 12-speed - E-tube
- Cassette: Shimano Dura-Ace R9200 12-speed - 11-30T
- Chain: Shimano CN-M9100, with quick link, 12-speed, 126 links, SIL-TEC
- STI lever and brake caliper: Left Shimano Dura-Ace ST-R9270 hydraulic disc brake Di2 STI plus Shimano Dura-Ace BR-R9270 flat mount rear caliper and hose, without E-tube cables
- STI lever and brake caliper: Right Shimano Dura-Ace ST-R9270 hydraulic disc brake Di2 STI plus Shimano Dura-Ace BR-R9270 flat mount front caliper and hose, without E-tube cables
- Power meter chainset: Shimano Dura-Ace FC-9200-P
- Charging cable: Shimano EW-EC300 - 1700 mm
- Electric wire: Shimano EW-SD300 E-tube Di2, 900 mm, black
- Electric wire: Shimano EW-SD300 E-tube Di2, 1200 mm, black
- Battery: Shimano E-tube SEIS Di2 battery - 7.4V lithium ion - 3-ports for SD300 wires and internal mount
Features
- A top of the range semi-wireless Di2, hydraulic disc brake groupset with included power meter chainset
- Wireless Di2 STI levers send rapid gear change signals to the derailleurs
- The derailleurs are hard-wired to an internal battery to offer 1000km of use between charges and more powerful, quicker gear changes
- The rear derailleur is the brain of the system, receiving the wireless signal from the levers, accepting the battery charge and housing the Di2 function button
- The 12-speed configuration allows for more even cadence and bigger climbing gears
- Hyperglide+ cassette tooth profiling ensures smooth and precise gear changes
- The gear system can be connected to the new E-TUBE app for gear change personalisation and to activate Synchronised Shifting mode
- Refined STI lever ergonomics provide more hand positions
- HollowTech II aluminium chainset is lightweight and incredibly stiff
- The crankset based power meter measures total and independent leg power to within 1.5% accuracy
- The Servo Wave brake lever offers increased braking control and precision
- The hydraulic disc brake calipers grant 10% extra pad clearance for quieter operation
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