Wolf Tooth Premium IS Headsets - Integrated Standard S.H.I.S. Designation:IS42/28.6 7mm Stack This link explaining 148mm "Boost"

This link explaining 148mm "Boost" spacing will help you decide if you need the M5 or M8

USA of majority US milled raw materials

From One Way: If Nordic skiing is your preferred winter training

Pre-shaped sleeves and reflective prints and tapes at front and back

Wolf Tooth Premium IS Headsets - Integrated Standard S.H.I.S. Designation:IS42/28.6 7mm Stack This link explaining 148mm "Boost"Wolf Tooth headsets are machined here in our Minnesota shop with aircraft grade 6061 aluminum. They are designed to be lightweight, strong, and durable. Our headsets have three levels of industry leading custom sealing to protect bearings from the elements and prolong the life of the headset. Available in a variety of colors. These IS headsets are for frames with molded in internal bearing cups. Premium Headsets with Enduro stainless steel bearings