The Zipp 11.6618.029.006 part number refers to a set of precision-engineered conversion caps designed specifically for Zipp hubs. These small but essential components allow you to adapt your Zipp wheel to different axle standards, helping you keep a favorite wheelset compatible as you change frames, forks, or bikes. Built to Zipp’s exacting tolerances, the caps fit securely into the hub ends, ensuring smooth bearing preload and reliable performance under hard efforts, whether you are sprinting on the road, racing cyclocross, or logging long training miles.
Using genuine Zipp conversion hardware helps maintain the integrity and longevity of your wheels. The caps are typically made from durable alloy or similarly robust materials to resist wear, corrosion, and repeated wheel removals. Installation is straightforward for most home mechanics with basic tools, making it easy to switch between thru-axle and quick-release standards or different axle diameters, depending on the specific hub and cap type. If you want to future-proof your Zipp wheels and avoid buying a new wheelset every time you change bikes, these conversion caps are a smart, cost-effective solution.