Still open for business during COVID-19. Free shipping on US orders over $50.

Wolf Tooth Precision Headsets are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These EC headsets are for frames with external bearing cups. In other words, the bearing sits outside of the frame with these headsets. 


  • 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 stainless steel sealed bearings included on both the upper and lower

Upper assembly features:

  • Ultralight stem cap with integrated spacer plus an aluminum bolt and a star nut
  • 6mm cover = 16mm total stack, 15mm cover = 25mm total stack, 25mm cover = 35mm total stack
  • O-ring seal prevents water intrusion around the steerer tube
  • Custom molded upper lip seal provides additional protection for upper bearing
Lower assembly features:


The Wolf Tooth crown race installation adapter will help avoid damaging the crown race seals

Related Products

Tech Specs

Weight: 55-68g
Material: 6061 aluminum

Made in the USA

  WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to​

Patent and trademark information

    New Products