Serious cyclists, this Campagnolo Super Record 12-speed chain is what dreams are made of. At just 5.15mm wide, it's engineered to work perfectly with Campagnolo's 12-speed systems while maintaining the same durability and maintenance as their 11-speed chains. The Ultra-link system makes installation and removal safe and secure - though you'll need the dedicated Campagnolo UT-CN300 tool (sold separately) to work with it properly. Weighing approximately 7.8 ounces for 110 links, this chain delivers the lightweight performance you expect from Super Record components. The special treatment on the pins and plates ensures super smooth shifting and quiet operation, while the black finish looks sleek on any high-end bike. This isn't some generic chain - it's specifically designed for Campagnolo's precise shifting requirements and delivers the performance that competitive cyclists and enthusiasts demand. As an authorized domestic product (not parallel import), you get the quality assurance and support you expect from Campagnolo. Whether you're building up a new bike or upgrading your current ride, this chain completes the Super Record experience with flawless shifting and reliable performance mile after mile. Just remember - no cheating with generic chain tools, you need the proper Campagnolo tool for this one!