SPM Semi-Pneumatic

Puncture-free wheels that are tubeless and have an air layer.
[Features]
·A layer of air was created by a method that does not use a tube.
·A "semi-pneumatic wheel" that combines the durability of puncture-free wheels with the elasticity of pneumatic wheels.
·High elasticity, impact resistance, low noise.
[Applications]
·Ideal for areas where no puncture is required.