This is an RC-scale foam tyre rim designed for 1/10 formula-style cars and supplied as a rear pair. The 25 Shore carbon-infused foam used in the AM-040911 gives a softer profile that increases mechanical grip on short, technical layouts.
Installation follows common foam-tyre practice: use a foam-safe adhesive to bond the tyre to the rim, trim excess foam for a neat bead, and confirm concentric mounting before final fitment. Light dynamic balancing and stepwise track testing will help you assess how the 25 Shore compound affects corner entry and traction.
As a tuning element this rim changes contact conformity and wear characteristics rather than providing a universal fix: expect altered steering feel and faster wear than harder compounds, and pair tyre changes with small ride height, toe, and roll-stiffness tweaks to regain balance.
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