Type / Use: Motorcycle inner tube, designed for use inside the tire to hold air.
Valve Type: TR6 (center metal valve stem) — robust and typical for heavy or thick tubes.
Size / Fit Range: The example tube is 325/350-19; your spec “300/325 × 19” is a bit narrower, but the tube design is comparable.
Material & Construction: Seamless rubber construction, heavy-duty or ultra-heavy-duty grades.
Applications / Notes: Used in off-road, vintage, or standard motorcycles with 19-inch wheels. Tubes often need to be correctly matched with the tire width and rim.
Limitations / Caveats: Must ensure the tube’s cross-section matches your tire (300/325) — using a tube that is too wide or too narrow can cause premature wear or failure.
