Wolf Tooth Headset Lower

This is an EC44/40 lower assembly, meaning it is designed for frames with a 44mm internal diameter head tube and a tapered steerer tube requiring a 40mm crown race. Please verify your frame's head tube specifications before purchasing to ensure compatibility.

The custom-molded dual-lip seal is specifically engineered to keep contaminants like water, grit, and mud out of the bearings. It provides a significant barrier against the elements, which helps extend the lifespan of the internal components compared to standard open-bearing designs.

The lower stack height for this component is 12.25 mm. This measurement is important to consider if you are trying to maintain a specific handlebar height or if you have limited steerer tube length remaining on your fork.

Wolf Tooth designed this headset with serviceability in mind. The black oxide steel bearings are replaceable, so you can swap out just the bearings when they eventually wear out rather than replacing the entire headset assembly.

Yes, it is built for mountain biking. The combination of aircraft-grade aluminum and durable black oxide steel bearings is designed to handle the stresses of demanding terrain while maintaining smooth steering performance.