Moturo inner tube tire 4.00-4 for pocket quad pocket bike

Moturo inner tube 4.00-4 with straight valve for pocket bike and pocket quad

The Moturo inner tube for 4.00-4 tires on pocket bikes and pocket quads — the wear part that should be replaced during a tire change. Straight valve, compatible with standard 4.00-4 rims, ready for installation.

The inner tube sits between the rim and the tire, maintaining air pressure and ensuring the tire remains properly seated. The straight valve design matches that used on most rims with 4.00-4 tire dimensions for pocket bikes and pocket quads.

The inner tube is a standard replacement part when changing tires — a used inner tube rarely lasts as long as a new tire.

Replacement takes about half an hour with tire levers and an air pump.

Inner tube for pocket bike and pocket quad, made by Moturo.

Performance · Material · Specs

• Tire size 4.00-4 inch
• Straight valve
• Universal item for pocket bike and pocket quad
• Replacement inner tube to be changed alongside tires

Important notes – please read

Replacement/wear part that does not require registration; no entry in vehicle documents is necessary. Compare tire size and valve type with the removed inner tube before ordering.

Tools & Time required

• Tire levers
• Air pump
• About half an hour for an experienced mechanic

Scope of delivery

1 × inner tube 4.00-4 with straight valve. Not included: tire, tools, rim tape.

Frequently Asked Questions

Does the inner tube fit tire sizes other than 4.00-4?
Check the size on your tire's sidewall. The inner tube is designed for 4.00-4; similar sizes may work with some tires, but this is not guaranteed.

Is a new inner tube absolutely necessary when changing tires?
We recommend changing it. A used inner tube rarely lasts as long as the new tire.

Which air pump fits the valve?
Straight valve in standard size, compatible with most standard air pumps.