Unleash Precision Shifting for Every Ride.
Struggling with unreliable gear changes can ruin your momentum and kill your flow. The Sunrace FDM300 derailleur delivers seamless, crisp shifting that adapts to your ride style. Designed for maximum compatibility and durability, it tackles up to 48 teeth sprockets with ease. Whether you’re upgrading or replacing, this dual pull derailleur ensures smooth performance across multiple frame sizes, eliminating hesitation and boosting your control.
Key Features
- Dual pull compatibility for versatile cable routing.
- Supports up to 48t sprockets for wide gear range.
- Fits multiple seat tube diameters: 28.6mm, 31.8mm, and 34.9mm.
- Robust construction for long-lasting reliability.
- Optimized for precise and responsive shifting under load.
Technical Specifications
- Model: Sunrace FDM300
- Maximum sprocket size: 48 teeth
- Seat tube clamp diameters: 28.6mm, 31.8mm, 34.9mm
- Pull type: Dual pull

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