1:10 Buggy Closed Cell Rear Insert - Kyosho 612204B  [KY-612204B]

Closed cell rear insert for 1:10 buggy tyres

The Kyosho 612204B rear insert is a closed cell foam internal designed to sit inside 1:10 buggy rear tyres and keep the tyre profile stable under load. It gives a firm internal form that helps maintain tyre shape for more consistent lap-to-lap behaviour and clearer setup comparisons on loose or mixed tracks.

Compatibility applies to 1:10 buggy tyres that accept closed cell style inserts; confirm tyre internal diameter and wheel offset before fitting. This item serves as an internal tyre support rather than a tyre or wheel, and it works alongside tyre pressure, compound choice, and shock setup to influence handling.

Installation notes: seat the insert evenly around the rim, trim only where absolutely necessary, and do not use adhesives or solvents that could damage the foam. Verify the bead sits correctly on the rim and perform a short bench check before track use. If you change tyres often, handle inserts gently to extend service life.

Tuning role: closed cell inserts change how the tyre holds its profile in corners and under acceleration. Firmer internal support tends to keep a flatter contact patch and faster turn-in, while softer support permits more local deformation and can increase traction on low-grip surfaces. Treat inserts as one adjustable parameter alongside shock rates, anti-roll balance, and tyre compound selection.

Suitable as a direct internals replacement for compatible 1:10 buggy rear tyres, this part helps drivers dial in rear traction and consistency without altering wheel or tyre geometry.