Shimano Dura-Ace RD-R9150 Di2 Rear Derailleur 11-Speed

Shimano Dura-Ace RD-R9150 Di2 Rear Derailleur

11-Speed | Electronic Di2 | Short Cage | IRDR9150SS

The Shimano Dura-Ace RD-R9150 Di2 Rear Derailleur delivers fast, precise electronic shifting for compatible Shimano 11-speed road Di2 drivetrains.

Its compact short-cage design is optimized for road gearing, while compatibility with both standard derailleur hangers and Shimano Rear Direct Mount systems provides a versatile factory-level solution for high-performance road bikes.

Key Features

• Shimano Dura-Ace electronic rear derailleur

• 11-speed Di2 drivetrain compatibility

• Fast, precise electronic shifting

• Short-cage road design

• Maximum supported sprocket: 30T

• Total chain capacity: 35T

• Shimano Rear Direct Mount compatible

• Standard derailleur hanger compatible

• Black finish

• Shimano MPN IRDR9150SS

Specifications

Compatibility Notes

• Designed for compatible Shimano 11-speed Road Di2 systems.

• Maximum supported rear sprocket is 30T based on the supplied specifications.

• Total chain-wrap capacity is 35T.

• Compatible with standard derailleur hanger mounting and Shimano Rear Direct Mount configurations.

• Verify drivetrain configuration and Shimano model RD-R9150 / MPN IRDR9150SS before ordering.

The Shimano Dura-Ace RD-R9150 Di2 Rear Derailleur is a premium electronic shifting component designed for riders seeking precise, race-level performance from an 11-speed Shimano Di2 road drivetrain.

Stage 21 Bikes carries genuine Shimano drivetrain components, factory replacement parts, and hard-to-find road bike service components.