Carbon Oversized Rear Derailleur Pulley Cage – Shimano 5800

Lightweight carbon fiber pulley cage designed to optimize drivetrain efficiency and reduce friction — for smoother, faster shifting. 

🔧 Key Features:

• 🧩 Compatible with Shimano 5800 / 5700 / 4700 / 4600 series
• 💎 Carbon fiber body – ultra-light and durable
• ⚙️ Oversized pulley design reduces chain friction
• 🚴‍♂️ Improves power transfer and shifting precision
• 🔩 Easy installation, perfect fit with Shimano derailleurs
• ⚡ Sleek aerodynamic design for performance bikes