This Factory Pro option main chassis is produced for the 3racing Cero Ultra Ver 2.0 and supplied under model O-3CP004. The part is a graphite 2.25 main chassis intended as a direct-fit aftermarket replacement that provides a different baseline stiffness compared with the original plate. It is suited to hobbyists who adjust chassis flex as part of setup work and want a stable platform for further tuning.
The chassis is presented as an RC-scale component; installation focuses on replacing the stock main chassis and aligning to the Cero Ultra Ver 2.0 mounting pattern. When planning an upgrade, check existing fasteners and mounting hardware for wear and verify clearance with electronics and suspension linkages before final assembly.
In tuning use, graphite 2.25 offers a balance between rigidity and controlled flex, allowing drivers to fine-tune handling by pairing this chassis with different shock and top-deck configurations. Expect changes to overall chassis behaviour rather than single-component performance, so test incremental setup changes on track to evaluate handling direction.
Factory Pro O-3CP004 provides an aftermarket graphite main chassis for 3racing Cero Ultra Ver 2.0 pilots who want a different starting stiffness for setup and race day tuning.
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