Kyosho OTW131 Mold Inner Sponge 50mm Hard Insert - OPTIMA Classic Series  [KY-OTW131]

Fine-tune Turbo Optima tyres with Kyosho OTW131 Mold Inner Sponge

The Kyosho OTW131 Mold Inner Sponge is created for the Turbo Optima range, delivering a snug internal profile that matches tyre contours. Its hard material is aimed at better traction and stable handling on high-adhesion road surfaces.

Made for high-adhesion circuits

Produced for enthusiasts who run on smooth, grippy tracks, this inner sponge helps keep the tyre contact patch consistent. The 50mm diameter corresponds to Turbo Optima tyres for repeatable performance.

Stable shape under load

The accurate moulding of the Kyosho OTW131 integrates with the tyre structure to limit deformation during hard cornering. The firmer compound helps the tyre hold shape, improving steering precision and consistency.