The OTW111B hard main chassis upgrades the structural backbone of the Kyosho OPTIMA. Fabricated from 7075-grade material, it improves chassis rigidity to better withstand track impacts and heavy driving.
Choosing 7075 delivers a robust plate with high resistance to bending, which helps retain suspension geometry under load. That leads to more predictable handling and improved steering precision during race conditions.
Built to match OPTIMA main plate points, the OTW111B fits with standard mounting patterns for a tidy installation. It is a straightforward way to beef up the chassis without major modifications.
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