Designed for the YZ-2CAL3.1 family, this hard main chassis uses a long-version layout to increase the wheelbase versus the stock CAL3 plate, producing a steadier chassis at speed. The top surface is finished for high grip to change tyre loading and feedback through corners.
It is intended as a tuning component to refine on-track balance and handling rather than a simple replacement plate; the chassis alters how suspension and weight transfer settings behave. Fitting involves removing the original main plate and reinstalling hardware to the YZ-2CAL3.1-compatible mounting points listed below.
Use this main chassis when you need a firmer setup for grippy circuits and a longer wheelbase to stabilise high-speed sections and mid-corner balance; pair it with conservative suspension and anti-roll changes when refining your setup.
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