The Shimano Ultegra RD-6600 rear derailleur is built for precise and reliable shifting across 10-speed road drivetrains. With its SS short cage design, it offers quick, accurate gear changes for riders using standard double chainring setups.

Part of Shimano’s Ultegra 6600 series, this derailleur combines lightweight alloy construction with near Dura-Ace level performance, making it a favourite for competitive cyclists and retro-modern road bike builds.

Item specifics:

Condition: Used – cosmetic wear consistent with age, fully functional.
Brand: Shimano
Series: Ultegra 6600
Model: RD-6600 SS
Part Type: Rear Derailleur
Speed Compatibility: 10-speed
Cage Length: Short cage (SS)
Mounting Type: Bolt-on
Material: Aluminium alloy
Colour: Silver
Country/Region of Manufacture: Japan
Compatible Bike Type: Road Bike, Racing Bike
Set Includes: Rear derailleur only

Why it’s special:

Genuine Shimano Ultegra 6600 series component.
Smooth and responsive 10-speed shifting.
Lightweight alloy construction.
Ideal for mid-2000s road racing builds or retro-modern upgrades.

Stock: Only 1 available!
Price: €30

Ultegra 6600 rear derailleur

Shimano Ultegra RD-6600 Rear Derailleur – 10-Speed, Short Cage SS (Used)