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

Internal closed cell support for 1:10 buggy tyres

The Kyosho 612204B rear insert is a closed cell foam internal that fits inside 1:10 buggy rear tyres to sustain tyre shape during use. The insert delivers predictable internal geometry that assists repeatable setup work on dirt, hardpack, and mixed surfaces.

Fitment is limited to tyres compatible with closed cell internals; always check tyre internal diameter and wheel offset before installation. This part functions as a tyre support component only and complements settings such as tyre pressure, compound selection, and shock tuning when refining handling.

Installation advice: position the insert so it sits uniformly around the rim, only trim in clearly necessary areas, and avoid adhesives or solvents that can harm the foam. Confirm the bead seating and perform a bench check before running on track. Frequent tyre removal calls for careful handling to prolong the insert.

Tuning considerations: closed cell inserts affect how a tyre retains its profile under cornering and acceleration forces. Stiffer internal support generally preserves a flatter contact patch and sharper turn-in, while less support allows more local deformation and can give extra bite on loose surfaces. Use the insert alongside adjustments to shocks, anti-roll distribution, and tyre compounds.

Offered as a direct internal replacement for compatible 1:10 buggy rear tyres, this insert helps tuners and hobbyists improve rear traction consistency without changing wheels or tyres.