Specialized OEM Front Derailleur Mount Kit Tarmac SL8 Aethos Crux Di2

Specialized Factory Replacement Front Derailleur Mount Kit

Di2 Wire Compatible – Braze-On Style

This Specialized factory replacement front derailleur mount kit is engineered for modern Tarmac SL8, Aethos, and Crux carbon frames, providing a precise, OEM-correct solution for braze-on front derailleur installation.

The mount features a small integrated side notch, allowing Shimano Di2 wiring to pass cleanly behind the derailleurfor a tidy, factory-finish appearance—ideal for high-end electronic drivetrain builds.

Manufactured to Specialized OEM specifications, this kit ensures correct derailleur alignment, secure mounting, and long-term shifting performance for both electronic and compatible mechanical front derailleurs.

Key Features & Benefits

• Genuine Specialized OEM replacement

• Designed specifically for Tarmac SL8, Aethos & Crux platforms

• Integrated Di2 wire relief notch for clean electronic routing

• Maintains factory derailleur alignment and shift precision

• Matches original frame geometry and finish

• Ideal for replacements, frame builds, or warranty service

What’s Included

• Front derailleur braze-on mount

• Required mounting hardware
  (As supplied by Specialized OEM)

Compatibility Notes

• Designed for braze-on style front derailleurs

• Fully compatible with Shimano Di2 electronic routing

• Compatible with mechanical front derailleurs where frame-approved

• Not compatible with clamp-on front derailleurs

• Always verify frame model and generation before ordering

OEM Compatibility

Specialized Road & Gravel Platforms

Tarmac SL8 (2024–2026)

• Comp, Expert, Pro

• S-Works (all builds)

• LTD Editions & Team Framesets

• Framesets & Warranty Frames

Aethos (2021–2026)

• Comp, Expert, Pro

• S-Works & LTD Editions

• Framesets

Crux (2022–2026)

• Comp, Expert, Pro

• S-Works

• Framesets & LTD Editions

(Covers both complete bikes and framesets within these model years)

Recommended Use

• Front derailleur replacement or upgrade

• Frame builds and restorations

• Warranty or crash replacement

• Clean Di2 electronic drivetrain routing

Why Buy OEM?

Using genuine Specialized drivetrain mounting hardware ensures:

• Correct derailleur positioning

• Smooth, precise front shifting

• Clean Di2 wire routing

• Factory-correct appearance

• Long-term reliability and resale value

The correct OEM solution for perfect front shifting and clean Di2 integration on modern Specialized performance frames.