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Shimano Dura-Ace R9270 Hydraulic Disc Di2 Left Rear Lever & Caliper

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£599.00

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Shimano
Dura-Ace R9270 Hydraulic Disc Di2 Left Rear Lever & Caliper
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Product ID: 1476895

Shimano Dura-Ace R9270 Hydraulic Disc Di2 Left Rear Lever & Caliper

This set guarantees optimal gear changes and confidence-inspiring braking by combining a top-of-the-range Shimano Dura-Ace R9270 Hydraulic Di2 Left Rear Lever and disc brake caliper. Wireless hardware is encased inside the ergonomically shaped hood body, and this partners with the easily operated buttons on the side of the lever to grant rapid and accurate gear shifts. The wireless signal is sent directly to the derailleurs and is powered by a single small CR1632 battery that lasts for up to two years. Usually actuating the front derailleur, this left-hand lever can be tuned via the E-TUBE app to offer personalised shift behaviour.

The carbon lever actuates the rear hydraulic brake caliper with Servo Wave technology to increase control, while the one-piece caliper body increases rigidity and keeps weight to a minimum. The caliper includes oversized pistons to promote even power application on the rotor and operates with 10% more clearance to help avoid brake drag. Thanks to the self-adjusting hydraulic system, pad spacing is kept consistent, and a redesigned bleed port quickens installation and maintenance.

Includes

  • 1 x ST-R9270 left hand Di2 STI lever
  • 1 x BR-R9270 flat mount rear brake caliper with pads
  • 1 x hydraulic hose and mineral oil

Features

  • A set that includes a left hand Di2 lever and a rear hydraulic disc brake caliper
  • Lightweight carbon brake lever and titanium hardware
  • The raised hood peak improves ergonomics, while a longer hood body increases hand support
  • Di2 technology makes gear shifting easy and precise at the simple touch of a button
  • Communication to the derailleurs is wireless, providing rapid and reliable gear operation
  • Considered shift button positioning guarantees intuitive shifting from multiple hand positions
  • Ports for use with SD300 E-tube electric cables allows satellite shifters to be installed
  • Typically operating the front derailleur, the shifting behaviour of this left hand lever can be customised with the E-TUBE app
  • Power is provided by 1 x CR1632 battery which lasts for approximately 1.5-2 years
  • Servo Wave technology reduces empty brake lever travel, but affords more precise control when pad contact is established
  • Pad to rotor clearance auto-adjust by the hydraulic tank maintains braking performance during pad wear
  • Finely tunable reach adjusters for the lever blade enables custom fitment for all hand sizes
  • Forged MONO-BODY one-piece caliper design is lightweight and rigid
  • The flat-mount caliper is designed for rear wheel use and comes with an adapter to flip between 140 and 160mm rotors
  • Oversized 22mm ceramic pistons optimised for heat insulation, low weight and stiffness
  • A 10% increase in pad clearance reduces the chance of rotor drag
  • Resin compound aluminium radiation fin pads improve heat dissipation
  • Separate bleed port and valve screw for improved bleeding process
  • Manufacturer claimed lever weight: 350 grams (for a pair of levers - this listing contains just the left lever)
  • Manufacturer claimed caliper weight: 110 grams


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