AER Series Headset Top

This headset top is designed for frames using an IS42 standard, which corresponds to a 42mm head tube inner diameter and a 1.125-inch steerer tube. Please verify your frame's headset specifications before purchasing to ensure a proper fit.

The Norglide composite bearing is engineered specifically to reduce rotating mass and overall weight. While it offers excellent performance for weight-conscious builds, it is optimized for riders prioritizing gram-shaving over the longevity of traditional steel cartridge bearings.

Yes, it is designed to integrate seamlessly with most high-performance lower assemblies. However, because it features a specific 9mm stack height, you should confirm that your current setup accommodates this height to maintain proper geometry.

While it is built with structural integrity in mind, the AER Series is primarily engineered for weight savings. It is suitable for both road and MTB use, but it is best reserved for competitive builds where every gram counts rather than heavy-duty, high-impact riding.

Yes, the 17-gram weight refers to the complete upper headset assembly as provided. This makes it an exceptionally lightweight option for riders looking to optimize their bike's front-end weight.