Syncros IS52/31.8 - IS52/42 Headset

The Syncros IS52/31.8 - IS52/42 Headset is a clean, functional integrated headset designed to work with frames using IS52 cup sizing — pairing a 31.8mm upper bearing race with a 42mm lower. Built under the Syncros component line, it fits neatly into bikes spec'd for integrated headset standards, keeping the front end smooth and serviceable without unnecessary bulk. If you're replacing a worn headset or building up a frame that calls for IS52 top and bottom, this headset covers the fit without fuss. Syncros components are designed to deliver reliable performance across a range of riding disciplines, and this headset is no exception — straightforward to install and built to last through regular use.