ENVE Pressure Relief Valve Stem Nut GRAVEL Special machined teeth help both

Special machined teeth help both up/down chain shifting

The Pressure Relief Valve Stem Nut prevents this from happening by creating an escape for the air via fluted reliefs on the inner diameter of the nut

all wrapped up in a beautiful design

Trace DayBright

however this solution has its own challenges as the core of the lever is where you can add the least stiffness and strength

ENVE Pressure Relief Valve Stem Nut GRAVEL Special machined teeth help bothThe Pressure Relief Valve Stem Nut has been designed to ensure that an improper tubeless tape job doesnt result in a damaged rim. If the tubeless seal between tires air chamber and the rims cavity is breached, the rims cavity can become pressurized resulting in a pressurized rim and potential delamination of the rims sidewall. The Pressure Relief Valve Stem Nut prevents this from happening by creating an escape for the air via fluted reliefs on the