Upgrade your bike’s performance with these premium ceramic bearing derailleur pulleys, designed for cyclists who demand speed and precision. Engineered with ultra-smooth ceramic bearings, these pulleys deliver effortless shifting and minimize drivetrain friction for a faster, quieter ride. Crafted from lightweight and durable materials, they feature striking red and black finishes to add a bold touch to your setup. Available in standard 11T and 13T sizes to fit most road and mountain bike derailleurs. Perfect for riders looking to elevate their cycling experience with enhanced responsiveness and lasting reliability.