The Schrader valve located on the top cap of the AXEO is used to fill the cartridges with nitrogen. DO NOT tamper with the Schrader valve, as you run the risk of releasing the nitrogen charge from the cartridges, which will negatively affect the ride quality of the AXEO's. If the nitrogen charge is inadvertently released, the AXEO's will need to be sent into our facility in order to be re-charged with nitrogen.
41mm Top Cap and Schrader Valve:
49mm Top Cap and Schrader Valve: