Tamiya 40141 Inner Sponge Front 1/12 On-Road Tire Insert  [40141]

Fine-tune Wheel Grip for 1/12 On-Road Cars

The Tamiya 40141 Inner Sponge Front is a compact tire insert for 1/12 scale on-road RC cars that helps reduce slip and improve handling at speed. It sits inside the tyre to support sidewall shape and maintain road contact when cornering.

More Consistent Handling During Laps

For competitive runs or casual track sessions, this inner sponge smooths tyre behavior so corner entry and exits feel more predictable, aiding lap consistency and driver confidence.

Fitment Advice and Typical Use

This insert works with a wide range of 1/12 on-road wheels and is useful for pilots who switch tyres often or tune setups for different track surfaces. Check wheel clearance before fitting to ensure a snug installation.