Shimano Dura-Ace R9270 Groupset
Including Shimano's finest components, the Dura-Ace R9270 Groupset perfectly suits the flashiest bike builds and the most discerning road riders. The electronic Di2 gears utilise a semi-wired configuration that sees the wireless STI levers send rapid gear change signals via a deft touch of a button to the derailleurs. The rear derailleur, front derailleur and internal battery are hard-wired, communicating with each other to ensure fast and accurate gear changes. This semi-wired format ensures excellent derailleur run times between charges and provides a stronger gearshift action for snappier gear changes. The gear system can be hooked up to the new E-TUBE smartphone app so that the rider can completely customise the gear change behaviour in line with personal preferences and the terrain.
The 12-speed cassette closes the jumps between sprockets to enable a more consistent cadence and increases the gear range for when tackling challenging climbs. The sprockets of the cassette are shaped via Shimano's Hyperglide+ format that, in partnership with the more positive derailleur action, grants silky smooth actuation. Complementing the cassette, the Hollowglide II aluminium chainset is extra-light but exceedingly stiff to guarantee efficient power transfer from the rider to the drivetrain.
Refined lever hood ergonomics afford more handholds, especially when adopting an aggressive, aerodynamic riding position, and the carbon brake lever with Servo Wave technology markedly heightens control of the hydraulic disc brakes. These levers are linked to one-piece calipers with 10% extra pad-to-rotor clearance to quieten operation in bad weather or after lengthy descents.
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
- Chainset: Shimano Dura-Ace FC-R9200
- 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
- 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
- A HollowTech II aluminium chainset is lightweight and incredibly stiff
- The Servo Wave brake lever offers increased braking control and precision
- The hydraulic disc brake calipers grant 10% extra pad clearance for quieter operation