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

Support Insert for Better Steering Feedback

The Tamiya 40141 Inner Sponge Front fits inside 1/12 on-road tyres to stabilise the tyre profile and improve steering response. It helps the tyre maintain shape under load for clearer feedback through corners.

Improved Traction for Club and Track

When you need predictable traction across different surfaces, the inner sponge reduces unwanted tyre deformation so entry and mid-corner balance feel more controlled.

Practical Compatibility Tips

Designed for many common 1/12 on-road wheel types, this insert is a handy tuning piece for hobbyists who switch setups between practice and races. Ensure the sponge seats flat inside the tyre for consistent performance.