Xiaomi / Segway Ninebot M365 / 1S / Pro / Pro2 / Max G30 – podaljševalni adapter za ventil, 39 mm

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Valve extension adapters measuring 39 mm facilitate air pump nozzle attachment on recessed wheel hubs. Compatibility extends specifically to Xiaomi M365, 1S, Pro, and Pro2 electric scooters, alongside the Segway Ninebot Max G30. Narrow rim clearances on these specific models often prevent standard pump nozzles from establishing a secure connection to the valve stem. Using this adapter resolves accessibility constraints during routine pressure adjustments, which are required to prevent tire under-inflation, pinch flats, and internal tube damage.

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Brass construction provides the mechanical strength necessary to withstand repeated high-pressure inflation cycles while maintaining an airtight seal. Metal threading prevents the stripping often observed in plastic alternatives. Installation involves screwing the adapter directly onto the existing valve stem until firm contact occurs. Users must ensure the adapter is tightened sufficiently to prevent air leakage during the inflation process. Periodic inspection of the internal rubber gasket is recommended to maintain pressure integrity. Removing the adapter after inflation minimizes additional mass on the valve stem, though permanent installation is physically possible if clearance allows. Routine replacement is indicated if the internal threads show signs of oxidation or if the seal fails to maintain air pressure during use.