The Airless 12½ × 2¼ Tube is a replacement inner-tube-style component intended for compatible small-wheel bicycles or similar mobility applications. The 42mm measurement may refer to the valve length or another product dimension, so it should be confirmed against the supplier's specification before listing it as a valve length.
Key Features
Airless design eliminates the need for inflation.
Sized for compatible 12½ × 2¼-inch tyres.
Designed as an alternative to a conventional pneumatic inner tube.
Intended to reduce flat-tyre maintenance.
Specifications
Product Type:Airless tyre insert
Size:12½ × 2¼ inches
Additional Measurement:42mm (confirm its meaning with the supplier)
Application:Compatible small-wheel tyres
Benefits
Eliminates punctures caused by loss of air pressure in a conventional tube.
Removes the need to check or replenish tyre pressure.
Reduces routine inner-tube maintenance.
Best Suited For
Compatible 12½ × 2¼-inch wheels and tyres.
Small-wheel applications where airless running is preferred.
Users seeking to reduce puncture-related maintenance.