Wolf Tooth Premium Internal EC44 Headsets were developed for frames using the ENVE IN-Route System of cable integration with a 44mm head tube. It was made for cyclists who want a clean aero cockpit that keeps cables and brake lines out of sight. Wolf Tooth headsets are machined with aircraft-grade 6061 aluminum at Wolf Tooth in Minnesota USA.

Designed for the ENVE IN-Route System with a 44mm straight headtube and a 1-1/8” to 1.5” tapered steerer tube (FITS ONLY ENVE In-Route System)

This Internal headset helps reduce aerodynamic drag by hiding cables away from airflow and presents a svelte profile with its ultra-low 15.8mm upper and 12.25mm lower stack height

Features Wolf Tooth's best-in-class triple-sealed system to protect the premium Enduro stainless steel bearings from the elements

Internal o-ring top cap seal prevents water intrusion around the steerer tube

Uses the largest possible ball size and are filled with high-pressure waterproof lubricant

Lower Stack Height	12.25
Material	Aluminum
Upper Stack Height	15.8
S.H.I.S Upper	EC44
S.H.I.S Lower	EC44
Color	Black, Blue, Gold, Orange, Purple, Raw Silver, Red
Crown Race	40
Bearing Type	Stainless Steel
Weight	116
Defined Color	Black, Blue, Gold, Orange, Purple, Red, Silver