Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our Performance Headset is built to include a black oxide coated chromium steel bearing and a one year warranty. Our headsets stand above the rest with three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable. Available in a variety of colors. These EC headsets are for frames with external bearing cups, which places the bearing outside of the frame with these headsets. Compatibility Stack height designation for EC headsets includes 10mm cup (see tech specs). Any frame that uses an external cup headset with a 34mm upper head tube inner diameter and 34mm, 44mm, or 49mm lower head tube inner diameter. Uppers and lowers sold separately. Enduro black oxide sealed bearings included on both the upper and lower. Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes you will need a compression plug (sold separately). (Never use a star nut on a carbon steerer tube). A crown race adapter (sold separately)will allow you to use forks with smaller 1-1/8" or 1-1/4" steerer tubes with a larger 1-1/2" bottom headset cup Lower assembly features: Custom molded dual-lip seal on the crown race to protect lower bearing in the toughest conditions. 12.25mm stack. Service and additional parts available. Specifications: Weight: EC44 lower • 45g | EC49 lower • 54g | EC34 lower • 37g | EC34 5mm upper • 64g | EC34 15mm Upper • 70g | EC34 25mm upper • 79g Material: 6061 aluminum Stem Cap Bolt Torque Spec: 2-3 Nm with light grease on threads only Made in the USA
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