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OnBuy.com£7.49Visit shop Inner Tube 4.00-4 Straight Valve Sack Truck 4.00 - 4 Inch Hand Trolley Wheel 5056499406101
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This heavy-duty inner tube is designed for individuals maintaining sack trucks, hand trolleys, and light industrial mobile equipment. It provides a reliable, air-tight seal for 4-inch rims, offering the key benefit of universal compatibility across multiple common tyre sizes like 4.10/3.50-4 and 3.50-4. While it offers excellent durability for standard loads, users should ensure their rim size matches the 4-inch specification to avoid pinch flats or valve misalignment during installation.
| Brand | PetrolScooter |
|---|
Yes, this inner tube is fully compatible with 4.10/3.50-4, 4.10-4, and 3.50-4 tyre sizes.
Yes, it uses a standard Schrader (car type) valve, which is compatible with most bicycle pumps and air compressors.
No, this tube is designed for sack trucks, hand trolleys, and similar slow-moving utility equipment.
It is specifically designed for 4-inch wheel rims.
If your tyre loses pressure consistently and the outer tyre tread is still in good condition, the inner tube has likely developed a leak or a failing valve.
Check the valve core is tightened securely and ensure the tube was not pinched between the tyre bead and the rim during seating.
Ensure the inner tube is oriented correctly within the tyre so that the valve stem aligns perfectly with the opening in the wheel rim.
Inspect the inside of the outer tyre for small debris, metal wires, or sharp objects that may remain embedded in the rubber.
To install, first remove the wheel from your trolley and deflate the old tube completely. Use tyre levers to gently pry the tyre bead off the rim, then pull the old tube out. Before inserting the new PetrolScooter inner tube, inspect the inside of the tyre casing for thorns, glass, or debris that caused the previous leak. Lightly inflate the new tube just enough to give it shape before tucking it into the tyre. Once seated, push the Schrader valve through the rim hole and inflate to the pressure rating specified on your tyre sidewall. To maximize longevity, avoid storing the equipment in direct sunlight, which can cause the rubber to perish over time.
