Wolf Tooth Precision Headsets are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements
      
      
        
          
        
    - Custom molded dual lip seal on the crown race to protect lower bearing in the toughest conditions
 - Enduro stainless steel sealed bearings
 - Made in MN, USA
 - Size: EC44/40
 - Compatibility: Any frame that uses an external cup headset with a 44mm lower head tube inner diameter, and tapered steerer
 - Upper/Lower: lower only
 - Wolf Tooth recommends using their crown race installation adapter to avoid damaging the crown race seals