Wolf Tooth Premium EC44 Internal Aero Headset for ENVE IN-Route System Color:Raw Silver It is friendly with carbon

It is friendly with carbon

while the RACE CODE seal confirms you have World Cup equipment

This prevents it from opening while you’re on the go

ISEV-ISB is for a Shimano I-SPEC EV shifter mounting to a Shimano I-SPEC B brake

Wolf Tooth Premium EC44 Internal Aero Headset for ENVE IN-Route System Color:Raw Silver It is friendly with carbonWolf Tooth Premium Internal Headsets for ENVE IN Route System are designed and machined right here in our Minnesota headquarters with aircraft grade 6061 aluminum. They are designed to have an ultra low stack height, to be lightweight, 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. Premium Headsets with Enduro