Shimano Dura-Ace FD-R9150

The Shimano Dura-Ace FD-R9150 is the ultimate expression of 11-speed front shifting, engineered to deliver fast, smooth, and silent gear changes even under the most extreme pedaling pressures. As part of the elite R9100 series, this Di2 derailleur features a compact, powerful motor that eliminates the effort of mechanical shifting. Its most significant advantage is the Auto-Trim function, which automatically adjusts the guide plate based on the position of the rear derailleur, effectively eliminating chain rub in every gear combination. Whether you’re sprinting for the line or climbing a steep grade, the FD-R9150 ensures your drivetrain remains silent and efficient.

Key Features

• Instant, Effortless Shifting: The high-torque electronic motor moves the chain across rings with a light click of the shifter, regardless of load.

• Synchronized Shift Compatible: Can be programmed via E-TUBE to automatically shift the front derailleur in response to rear gear changes for an optimized gear line.

• Auto-Trim Function: Sensors communicate with the rear derailleur to micro-adjust the front cage, preventing annoying chain noise and wear.

• Compact & Lightweight: Refined construction keeps the weight at a minimum while maintaining the stiffness required for pro-level torque.

• Durable Construction: Built with high-grade alloys and carbon-reinforced components to withstand years of high-performance use.

Specifications

• Drivetrain Speeds: 2x11 Speed Di2

• Top Gear Teeth: 46T - 55T

• Chainline: 43.5mm

• Chainstay Angle: 61° - 66°

• Mounting: Braze-on

• Wiring System: EW-SD50

Typical Components Included

• FD-R9150 Front Derailleur

• Backup Bolt (for frame stabilization)

• User Manual