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Shimano RD-R9150 Dura-Ace Di2 Rear Derailleur

Shimano RD-R9150 Dura-Ace Di2 Rear Derailleur

by Shimano
Sold out
$939.99 - $939.99
$939.99
$939.99 CAD
$939.99 - $939.99
$939.99 CAD
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60-day Return Policy
You can return any current product in new and saleable condition (with any tags or packaging) within 60 days for a full refund, credit or exchange. Does not apply to items part of our (Re)Cycle Consignment inventory. A $15 return shipping fee applies to orders that are shipped out. Additional exclusions may apply.

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Most items we sell are covered by a manufacturer's warranty. The terms and duration of the warranty will be listed on the item packaging or documentation. More detailed information may be available on the manufacturer's website.

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Shimano's Di2 drivetrains free you from shifting problems, drop your shifting effort to zero and give you complete riding confidence!


The all-new Dura-Ace RD-R9150 rear derailleur is easier than ever to setup and adjust, more resilient to crashes and offers increased customizability.


The Dura-Ace Di2 R9150 rear derailleur brings Shimano's mountain bike Shadow technology to the road. With the rear derailleur under the chainstay and cassette, the slimmer profile offers extra protection in crashes and helps with aerodynamics. Wheel changes can be faster too!

Also new to Shimano's 9150 groupset is the option to use Synchro-Shift. Shifting up or down with your right lever will move both derailleurs as necessary to put you in the next hardest or easiest gear combination!

  • Designed to work with Shimano's Dura-Ace 9150 Di2 11-speed drivetrain.
  • Use Shimano Synchro-Shift to customize your bike's shifting behaviour.
  • Quick and smooth rear shifting even under high pedalling torque.
  • Maximum sprocket 30T
  • Minimum sprocket 11T
  • Maximum chainring 16T
  • Total Capacity 33T
  • Weight 204g