Campagnolo's Chorus 12-speed chain is designed for impeccable, reliable performance, even with larger cassettes. Precision shifting from both front and rear derailleurs is ensured by this 12-speed chain, which underwent extensive research and development to achieve the reliability and longevity of an 11-speed chain, despite being narrower. The Chorus 12-speed groupset features a new chain that matches the reliability and performance levels of the Super Record category, with 114 links weighing only 241 grams. It is suitable for any Campagnolo 12-speed rim or disc brake groupset, offering exceptionally smooth and precise shifting. The Ultra-Link connecting system provides top-level fluidity, high-strength connection, enhanced safety, and longer chain life. Featuring an advanced Nickel-PTFE anti-friction treatment, it reduces friction for smoother pedaling, quieter operation, and increased efficiency. The pins are aligned with the external surface for optimal smoothness and precision. Please note that installation requires the Campagnolo Ultralink UT-CN400 Chain Tool.