Tamiya 53156 Hard Inner Sponge OP-156 - Performance inner for 1/10 on-road models  [53156]

Stiffen Your 1/10 Tyres with the Tamiya Hard Inner Sponge

The Tamiya 53156 Hard Inner Sponge OP-156 is made for hobbyists wanting firmer tyre behaviour in 1/10 on-road vehicles. This hard insert helps the tyre keep its profile under load, improving predictability when pushing through bends.

What the Hard Insert Delivers

Compared with softer sponges, this hard inner reduces sidewall collapse and keeps the contact patch more uniform. That steadier footprint can help drivers feel more confident during fast sections and tighter corners.

Compatibility Notes and Simple Fit

Compatible with many 1/10 on-road tyre types, the Tamiya inner sponge installs with minimal trimming on most wheel and tyre combos. It is a low-effort way to tune ride feel without changing the chassis or suspension.